Borg BL3100BLK Mechanical Digital Gate Lock - Single Keypad - Marine Grade - Black
At A Glance
At A Glance
DISPATCHSame Day Before 11am
PIN CodeThe Borg BL3100BLK is a fully mechanical, single-sided keypad gate lock from Borg's purpose-built gate lock family - it clamps to the face of a metal box-section gate post with no mortice cutting, and carries a lever keypad on the outside face with a free-turning paddle handle on the inside. It is the compact, single-sided model in the BL3100-BL3400 gate lock series: no back-to-back keypads, no key override, just a straightforward code-in, free-out gate lock for one-way code control.
The outside lever remains free-turning until the correct PIN is entered, then releases to retract the spring-loaded latch. The inside paddle handle is always free to operate for immediate egress, and can optionally be held in the open position using a removable holdback function. There are no batteries, no wiring, and nothing to charge - the keypad and latch are entirely mechanical, and the code is changed On The Bench, with the lock off the gate.
The marine grade keypad is salt spray tested to 1,000 hours, the spring-loaded latch bolt adjusts from 65mm to 80mm of projection with 20mm of bolt withdrawal, and the lever is reversible on site to suit either hand of gate. Browse the full Digital Mechanical Locks range for every battery-free keypad lock we stock.
Estimated Dispatch
Usually ships same day if ordered before 11am AEST (excludes weekends and Queensland public holidays).
Usually ships same day if ordered before 11am AEST (excludes weekends and Queensland public holidays).
Marine Grade Keypad - Salt Spray Tested to 1,000 Hours
The keypad is marine grade quality, salt spray tested to 1,000 hours, with the housing finished in black powder coat - good protection for coastal and outdoor Australian conditions. The 1,000 hours is a laboratory cabinet result (the finish held up that long in continuous salt fog), not a promise of service life on the coast. For severe, front-line coastal exposure, step up to the BL3400MGPROECP, which carries Borg's full Marine Grade Pro external coating - the grades and the test are unpacked in MG Pro and ECP explained.
The keypad is marine grade quality, salt spray tested to 1,000 hours, with the housing finished in black powder coat - good protection for coastal and outdoor Australian conditions. The 1,000 hours is a laboratory cabinet result (the finish held up that long in continuous salt fog), not a promise of service life on the coast. For severe, front-line coastal exposure, step up to the BL3400MGPROECP, which carries Borg's full Marine Grade Pro external coating - the grades and the test are unpacked in MG Pro and ECP explained.
Code Change is On The Bench - Lock Removal Required
This is a standard-chamber Borg lock: changing the PIN means taking the lock off the gate and rearranging the red (coded) and blue (uncoded) code pieces at a bench with the supplied tweezers. It is fiddly but entirely doable - the process is covered step by step in the bench method and Borg standard chambers. If you expect to change the code with any regularity - even once a year - the Easicode Pro BL3400MGPROECP changes codes on the gate in a couple of minutes.
This is a standard-chamber Borg lock: changing the PIN means taking the lock off the gate and rearranging the red (coded) and blue (uncoded) code pieces at a bench with the supplied tweezers. It is fiddly but entirely doable - the process is covered step by step in the bench method and Borg standard chambers. If you expect to change the code with any regularity - even once a year - the Easicode Pro BL3400MGPROECP changes codes on the gate in a couple of minutes.
Inside Handle Always Free - No Code Required to Exit
The inside paddle handle is free-turning at all times, giving immediate egress without entering a code. Worth knowing on a gate: because this is single-sided, anyone tall enough to reach over the top of the gate can potentially reach the free inside handle from outside too. If that reach-over risk matters on your site, the back-to-back BL3430GATE requires the code from both sides instead - see why back-to-back matters on gates.
The inside paddle handle is free-turning at all times, giving immediate egress without entering a code. Worth knowing on a gate: because this is single-sided, anyone tall enough to reach over the top of the gate can potentially reach the free inside handle from outside too. If that reach-over risk matters on your site, the back-to-back BL3430GATE requires the code from both sides instead - see why back-to-back matters on gates.
Optional Holdback Function
The inside paddle handle can be held in the open, free-passage position using the lock's built-in holdback function - handy for a working bee, a delivery, or any period where you want the gate to swing freely without disengaging the latch each time. If holdback is never needed, the device can be permanently removed from the lock body before installation. On a pool barrier gate, only use holdback while a compliant self-latching gate latch (such as a MagnaLatch) is fitted and doing the barrier's self-latching job - this lock's own latch never does that job. See passage mode vs holdback mode explained.
The inside paddle handle can be held in the open, free-passage position using the lock's built-in holdback function - handy for a working bee, a delivery, or any period where you want the gate to swing freely without disengaging the latch each time. If holdback is never needed, the device can be permanently removed from the lock body before installation. On a pool barrier gate, only use holdback while a compliant self-latching gate latch (such as a MagnaLatch) is fitted and doing the barrier's self-latching job - this lock's own latch never does that job. See passage mode vs holdback mode explained.
Fully Mechanical - No Batteries, Ever
There is no power source, no wiring, and no battery to go flat on a rainy night. The keypad and latch are all purely mechanical - one of the biggest practical advantages of a mechanical digital lock on an outdoor gate.
There is no power source, no wiring, and no battery to go flat on a rainy night. The keypad and latch are all purely mechanical - one of the biggest practical advantages of a mechanical digital lock on an outdoor gate.
Single PIN Code Only
Like all mechanical digital locks, this lock holds one active code at a time - everyone who uses the gate shares it, and there is no audit trail of who came and went. Since a code change on this model is done On The Bench, plan your code-sharing discipline up front. See the limitations of mechanical digital locks.
Like all mechanical digital locks, this lock holds one active code at a time - everyone who uses the gate shares it, and there is no audit trail of who came and went. Since a code change on this model is done On The Bench, plan your code-sharing discipline up front. See the limitations of mechanical digital locks.
Light to Medium Duty
This gate lock is built for light to medium traffic - residential gates, strata side gates, plant rooms, and service enclosures where a manageable number of people come and go each day. The forend fixing clamps to a hollow box-section post, which is a genuine structural consideration: it is the right method for gates, but it is not a commercial heavy-duty door lock.
This gate lock is built for light to medium traffic - residential gates, strata side gates, plant rooms, and service enclosures where a manageable number of people come and go each day. The forend fixing clamps to a hollow box-section post, which is a genuine structural consideration: it is the right method for gates, but it is not a commercial heavy-duty door lock.
Not for High-Traffic Commercial Doorways
For a busy commercial entrance with constant daily cycles, choose a heavy-duty rated mechanical digital lock instead - the Borg BL7701 heavy duty or the dual-keypad Carbine CDL7200LL-KDSC-HD. Our guide to what heavy duty actually means explains cycle ratings and where the line sits.
For a busy commercial entrance with constant daily cycles, choose a heavy-duty rated mechanical digital lock instead - the Borg BL7701 heavy duty or the dual-keypad Carbine CDL7200LL-KDSC-HD. Our guide to what heavy duty actually means explains cycle ratings and where the line sits.
Key Features
- Single-sided gate lock - lever keypad outside, free-turning paddle handle inside.
- Inside paddle handle always free - immediate egress without entering a code.
- Optional holdback function on the inside paddle handle - removable if not required.
- Marine grade keypad, salt spray tested to 1,000 hours; black powder coat housing.
- Over 8,000 code combinations; the code is changed On The Bench by rearranging the code pieces.
- Forend fixing system - through-bolts to the face of the gate post with two telescopic fixings, no mortice cutting or edge drilling.
- Anti-climb housing design.
- Spring-loaded latch bolt, adjustable from 65mm to 80mm projection, with 20mm bolt withdrawal.
- Security fixings included.
- Suits square gate posts from 30mm to 60mm as standard; the 50mm latch extension (sold separately) takes it to posts up to 120mm.
- Fully mechanical - no batteries, no wiring, no power.
- No key override - PIN code only.
- Easily reversible on site to suit either hand of gate.
- Browse all Digital Mechanical Locks.
Forend Fixing System - How the Lock Mounts
Unlike a door lock, the BL3100BLK never needs a mortice pocket. The lock body sits on the face of the gate post and two telescopic through-bolt fixings pass right through the post, clamping the unit firmly from both sides - a front collar and sleeve assembly on the keypad side, and a rear collar fitted from the post's rear side. Standard fixings suit square posts from 30mm to 60mm. If your post sits outside that range, measure before ordering - our guide to measuring the gate stile and the forend fixing option walk through it, and the accessories table below lists the latch extensions and round post kit.
Exploded view of the forend fixing method: through bolts pass through the gate post and secure the lock unit firmly, with the rear collar fitted from the post's rear side.
Access Methods
This is a mechanical digital lock: the outside keypad is the only way in, and the inside paddle handle is always free for exit. There is no app, fob, card or key override on this model.
What's in the Box
Borg BL3100BLK
- Outside lever keypad unit with anti-climb housing (marine grade keypad, black)
- Inside paddle handle unit, with holdback function fitted
- Adjustable spring-loaded latch bolt (65-80mm projection)
- Telescopic through-bolt fixing screws (suits 30-60mm gate posts)
- Code piece set - red coded and blue uncoded pieces (spares included for lengthening or shortening the code)
- Tweezers (code change tool)
- Allen key (latch projection adjustment)
- Fixings and installation hardware, including pins, sleeves, and the forend bracket
2x pins, 2x sleeves, tweezers x1, hex key x1, 2x through-bolt fixing screws, forend bracket x1, code piece set x4, Borg 3000 Series Lock x1.
Suitable Uses
- External aluminium and steel pedestrian gate access control in residential and strata properties.
- Side and service gates where a compact, single-sided, code-in, free-out lock is the specification - see all locks rated for an external gate exposed to rain.
- Driveway pedestrian gates where one-way code access is required and free inside egress is acceptable.
- Applications where the holdback function is genuinely useful - working bees, deliveries, or periods of free through-traffic.
- External gates in coastal and marine environments within the marine grade keypad's capability; for severe front-line salt exposure, step up to the MG Pro sibling.
- Not suitable for: fire doors or any required exit path, and not for a gate where the reach-over risk of a single-sided lock is a genuine concern - the back-to-back BL3430GATE closes that gap. On a pool barrier gate it only belongs alongside a compliant self-latching gate latch - see the pool gate question in the FAQ.
Available Finish Options
Black Powder Coat
(This Product)
STK BL3100BLK
Finish selection does not affect functionality, compliance, or performance. The entire BL3100-BL3400 gate lock family is supplied in black only.
Borg BL3100-BL3400 Gate Lock Series - Full Product Family
All ten models are purpose-built forend-fixing gate locks for metal box-section gate frames - fully mechanical, no batteries, black finish, 65-80mm adjustable latch. They differ in keypad configuration, marine grade tier, code change method, and key override.
Marine Grade models are finished in black powder coat with marine grade keypads (salt spray tested to 1,000 hours); MG Pro models carry Borg's Marine Grade Pro external coating. Easicode Pro (ECP) models change codes on the gate; the other models change codes On The Bench, with the lock off the gate. DKO = Double Key Override: a euro cylinder key override that can also deadlock the latch and lock out the code, while the BL3175GATEK's key override is a plain emergency-access override; the euro cylinder is not supplied on any key override model in this table. For help decoding Borg's model naming, see the Borg naming guide.
Accessories and Spare Parts
Every catalogued accessory and spare for the standard-chamber Borg gate locks is listed below - one of the reasons this range outlasts hardware-store keypad locks is that the parts that wear are all available as spares.
Spare red and blue code pieces are supplied in the box for lengthening or shortening the code. No spare keypad is catalogued for the BL3100-BL3400 gate lock series - if a keypad is damaged in service, contact us and we will handle it under warranty or source a resolution with Borg directly. The Easicode latch extension (BLGATELATCHNEW) and the Easicode change key belong to the ECP models, not this On The Bench version.
Full Specifications
Dimensions
Perspective view - keypad and lever body dimensions, fixing hole centres, and the 65-80mm adjustable latch projection
Front profile - 90mm wide, 105mm deep, latch projection 65-80mm adjustable
Side profile - latchbolt and forend fixing detail
Latchbolt projection adjusts 65-80mm with 20mm bolt withdrawal. Standard fixing suits 30-60mm square posts; the 50mm latch extension takes coverage to 120mm. See the full-width drawings in the Dimensions tab. Not sure your gate stile will take a lock at all? Start with how to measure a gate stile.
Frequently Asked Questions
How does the forend fixing system work - do I need to cut a mortice?
No mortice, no edge drilling. The lock body sits on the face of the gate post and two telescopic fixing screws pass right through the post, clamping the unit firmly from both sides. The spring-loaded latchbolt projects from the lock body into a strike on the opposite post or frame, and its projection adjusts from 65mm to 80mm. This is exactly the fixing method our narrow gate post guide recommends when a mortice lock physically will not fit the stile.
No mortice, no edge drilling. The lock body sits on the face of the gate post and two telescopic fixing screws pass right through the post, clamping the unit firmly from both sides. The spring-loaded latchbolt projects from the lock body into a strike on the opposite post or frame, and its projection adjusts from 65mm to 80mm. This is exactly the fixing method our narrow gate post guide recommends when a mortice lock physically will not fit the stile.
How do I change the code on this model?
On The Bench, not on the gate. The lock comes off the gate, the coding chamber is opened, and the red (coded) and blue (uncoded) code pieces are rearranged with the supplied tweezers to set the new digits - then reassemble, test the new code several times, and refit. It is a careful 20-30 minute job the first time. The full procedure is in the bench method and Borg standard chambers. If that sounds like a chore you will face often, the Easicode Pro BL3400MGPROECP changes codes on the gate in minutes.
On The Bench, not on the gate. The lock comes off the gate, the coding chamber is opened, and the red (coded) and blue (uncoded) code pieces are rearranged with the supplied tweezers to set the new digits - then reassemble, test the new code several times, and refit. It is a careful 20-30 minute job the first time. The full procedure is in the bench method and Borg standard chambers. If that sounds like a chore you will face often, the Easicode Pro BL3400MGPROECP changes codes on the gate in minutes.
What does the holdback function actually do, and can I remove it?
Holdback lets you latch the inside paddle handle in the open position so the gate can swing freely without needing to operate the latch each time - useful for deliveries or working bees. If you never want that, the holdback device unclips from the lock body before installation, leaving the handle to spring-close as normal. See passage mode vs holdback mode explained.
Holdback lets you latch the inside paddle handle in the open position so the gate can swing freely without needing to operate the latch each time - useful for deliveries or working bees. If you never want that, the holdback device unclips from the lock body before installation, leaving the handle to spring-close as normal. See passage mode vs holdback mode explained.
Can I use this lock on a pool gate?
The lock's job is access control, not the barrier's self-latching function. Our site-wide position is straightforward: a bolt-format lock is never allowed on a pool barrier gate because a bolt does not secure anything until it is thrown, but a self-latching latch lock like this one is fine so long as a genuinely compliant self-latching gate latch (such as a MagnaLatch) is doing the barrier's self-latching job. The inside handle is always free for egress. Holdback is only acceptable on a pool barrier gate while that compliant gate latch is fitted and doing the self-latching - this lock's own holdback is an access-control convenience, not a barrier safety feature (see holdback on pool barrier gates). See the full pool safety barrier gate treatment in our latch vs bolt guide, and get final sign-off from a licensed pool safety inspector before you specify any lock for a pool gate.
The lock's job is access control, not the barrier's self-latching function. Our site-wide position is straightforward: a bolt-format lock is never allowed on a pool barrier gate because a bolt does not secure anything until it is thrown, but a self-latching latch lock like this one is fine so long as a genuinely compliant self-latching gate latch (such as a MagnaLatch) is doing the barrier's self-latching job. The inside handle is always free for egress. Holdback is only acceptable on a pool barrier gate while that compliant gate latch is fitted and doing the self-latching - this lock's own holdback is an access-control convenience, not a barrier safety feature (see holdback on pool barrier gates). See the full pool safety barrier gate treatment in our latch vs bolt guide, and get final sign-off from a licensed pool safety inspector before you specify any lock for a pool gate.
What's the difference between this and the BL3400GATE?
Very little mechanically - both are single-sided marine grade gate locks with On The Bench code change, optional holdback, no key override, and the same forend fixing and latch. BL3100BLK is the compact model in the family; BL3400GATE uses the same fixing method on a slightly larger, more substantial lockcase. Choose BL3400GATE if you'd prefer the more substantial lockcase; BL3100BLK if compact is the priority.
Very little mechanically - both are single-sided marine grade gate locks with On The Bench code change, optional holdback, no key override, and the same forend fixing and latch. BL3100BLK is the compact model in the family; BL3400GATE uses the same fixing method on a slightly larger, more substantial lockcase. Choose BL3400GATE if you'd prefer the more substantial lockcase; BL3100BLK if compact is the priority.
Additional Information
Maintenance:
Monthly: wipe the keypad, lever and exposed latch with a light spray of silicon-based lubricant (such as GT85) and remove the excess with a soft cloth. Do not use oil-based lubricants such as WD-40 - they attract dirt and wear down internal parts over time. Annually: remove the lock from the gate, spray the inside through the code piece holes on the reverse of the keypad with silicon-based lubricant, spray all fixings, accessories and the latch with silicon-based lubricant, then press each button and operate the lever and handle several times to confirm smooth operation. Marine grade keypads resist salt attack; they do not exempt the lock from this care. Full steps are in the Borg Lock Servicing Guide (PDF).
Monthly: wipe the keypad, lever and exposed latch with a light spray of silicon-based lubricant (such as GT85) and remove the excess with a soft cloth. Do not use oil-based lubricants such as WD-40 - they attract dirt and wear down internal parts over time. Annually: remove the lock from the gate, spray the inside through the code piece holes on the reverse of the keypad with silicon-based lubricant, spray all fixings, accessories and the latch with silicon-based lubricant, then press each button and operate the lever and handle several times to confirm smooth operation. Marine grade keypads resist salt attack; they do not exempt the lock from this care. Full steps are in the Borg Lock Servicing Guide (PDF).
Plan the first code change: do it On The Bench before the lock ever goes on the gate - it teaches you the coding chamber layout while everything is clean and well-lit, and confirms the spare code pieces are all there. Keep the tweezers with your service kit, and if you need spare code pieces or change parts later, see code change spares explained.
Single-sided vs back-to-back: a single-sided lock like this one is code-in, free-out - simple and suits most side and service gates. If the gate can be reached from outside once someone is standing at it (a low gate, or one next to a fence someone could stand on), the free inside handle can potentially be reached over - see the single-sided problem explained. If that risk matters, the back-to-back BL3430GATE requires the code both ways.
One code, shared by everyone: plan how the code is shared and how rarely it needs to change - on this model a change is done On The Bench, so it suits gates where the user group is stable. If per-user codes or an audit trail are must-haves, you are shopping for an electronic lock, not a mechanical one - see the honest limitations rundown.
Warranty
Borg Locks Warranty - 12 Months (Australia)
All Borg locks are warranted against mechanical defects in materials and workmanship under normal use and service for a minimum of 12 months from date of sale. The warranty does not cover damage arising from misuse, vandalism, or improper installation. The lock must not be dismantled - doing so will invalidate the warranty. Proof of purchase required for all claims.
All Borg locks are warranted against mechanical defects in materials and workmanship under normal use and service for a minimum of 12 months from date of sale. The warranty does not cover damage arising from misuse, vandalism, or improper installation. The lock must not be dismantled - doing so will invalidate the warranty. Proof of purchase required for all claims.
Purchased through Terry's Tradies Pty Ltd or one of its associated trading names? Contact us first - we will manage your warranty claim with the Australian distributor (LSC) on your behalf. This warranty operates alongside your rights under the Australian Consumer Law.
Download PDF Resources
Borg BL3000 Series Brochure (PDF)
Borg's one-page brochure for the BL3000 gate lock series (BL3100, BL3100DKO, BL3130 and BL3130DKO) - features, the 30-60mm post range and dimensioned drawings. It shows the series with a knob-turn keypad in Black MG Pro; the BL3100BLK we stock has a lever keypad and a black powder coat housing.
Borg's one-page brochure for the BL3000 gate lock series (BL3100, BL3100DKO, BL3130 and BL3130DKO) - features, the 30-60mm post range and dimensioned drawings. It shows the series with a knob-turn keypad in Black MG Pro; the BL3100BLK we stock has a lever keypad and a black powder coat housing.
Borg BL3400 Series Leaflet (PDF)
One-page leaflet for the standard (non-ECP) 3400 and 3430 gate locks in Black Powder Coat - lever handle design, the 30-60mm post range, latch adjustment, fixings and the dimensioned drawings (the lockcase is shared with the BL3000 series, and the front and side drawings on this page come from it).
One-page leaflet for the standard (non-ECP) 3400 and 3430 gate locks in Black Powder Coat - lever handle design, the 30-60mm post range, latch adjustment, fixings and the dimensioned drawings (the lockcase is shared with the BL3000 series, and the front and side drawings on this page come from it).
Borg BL3100-BL3400 Series Instructions (PDF)
Borg's three-page parts list, installation and handing guide for the BL3100-BL3400 gate locks - establishing the hand of the gate, latch projection and position adjustment, and the On The Bench code changing procedure.
Borg's three-page parts list, installation and handing guide for the BL3100-BL3400 gate locks - establishing the hand of the gate, latch projection and position adjustment, and the On The Bench code changing procedure.
Borg Lock Servicing Guide (PDF)
Borg's general maintenance guide for pushbutton keypad locks - monthly silicone-based lubricant care and an annual full service. This is the routine to follow for this lock.
Borg's general maintenance guide for pushbutton keypad locks - monthly silicone-based lubricant care and an annual full service. This is the routine to follow for this lock.
Borg BL3100BLK - Extended FAQ
Deeper answers for installers and anyone specifying the BL3100BLK. The quick answers are on the main page - this tab covers fixing, the On The Bench code change in detail, holdback, compliance, weather, and choosing between models.
Fixing and Installation
Can I install this myself, and what tools do I need?
Yes, if you are comfortable drilling accurate holes through a metal post. You will need a drill with metal bits, a square, a tape measure, and an allen key - the two telescopic fixings pass through the post and clamp the lock from both sides, so the critical skill is drilling straight and level. Allow an hour for a first install. If you would rather hand it over, our advice and installation service can arrange a locksmith fit.
Yes, if you are comfortable drilling accurate holes through a metal post. You will need a drill with metal bits, a square, a tape measure, and an allen key - the two telescopic fixings pass through the post and clamp the lock from both sides, so the critical skill is drilling straight and level. Allow an hour for a first install. If you would rather hand it over, our advice and installation service can arrange a locksmith fit.
What gate post sizes does it fit?
Square posts from 30mm to 60mm on the standard fixings and latch. From 60mm up to 120mm, fit the 50mm latch extension. Round posts need the round post kit. Measure the post face width before ordering - how to measure a gate stile shows exactly where to put the tape.
Square posts from 30mm to 60mm on the standard fixings and latch. From 60mm up to 120mm, fit the 50mm latch extension. Round posts need the round post kit. Measure the post face width before ordering - how to measure a gate stile shows exactly where to put the tape.
My gate is hinged on the other side - is handing a problem?
No. The lock is easily reversible on site to suit either hand of gate, and the latch can be flipped to suit the swing direction. Do the reversal at the bench before mounting - the steps are in the BL3100-BL3400 installation instructions (PDF).
No. The lock is easily reversible on site to suit either hand of gate, and the latch can be flipped to suit the swing direction. Do the reversal at the bench before mounting - the steps are in the BL3100-BL3400 installation instructions (PDF).
Can I fit it to a timber gate or a door instead of a metal gate?
The forend fixing is engineered around hollow metal box-section posts - the telescopic fixings compress against the post walls. On thick timber the through-bolt principle can still work, but the anti-climb housing and latch geometry are designed for metal gate frames, and on an actual door you are better served by a purpose-built door lock. For a busy building doorway, look at the Borg BL7701 heavy duty instead.
The forend fixing is engineered around hollow metal box-section posts - the telescopic fixings compress against the post walls. On thick timber the through-bolt principle can still work, but the anti-climb housing and latch geometry are designed for metal gate frames, and on an actual door you are better served by a purpose-built door lock. For a busy building doorway, look at the Borg BL7701 heavy duty instead.
How does the latch adjustment work?
The spring-loaded latchbolt projection is adjustable from 65mm to 80mm, and the bolt has 20mm of withdrawal when the lever operates. Set the projection so the bolt engages the strike fully with the gate closed against its stop - too short and the gate rattles, too long and the bolt binds. The stainless steel strike is available as a spare if yours is lost or damaged.
The spring-loaded latchbolt projection is adjustable from 65mm to 80mm, and the bolt has 20mm of withdrawal when the lever operates. Set the projection so the bolt engages the strike fully with the gate closed against its stop - too short and the gate rattles, too long and the bolt binds. The stainless steel strike is available as a spare if yours is lost or damaged.
Codes, Holdback and Everyday Use
Walk me through the On The Bench code change.
Take the lock off the gate and work at a clean, well-lit bench. Remove the two red screws and lift the cover plate carefully - there are springs beneath it. With the coding chamber open and the C code piece held down, use the supplied tweezers to rearrange the code pieces: red coded pieces go in the button positions you want in your new code, blue uncoded pieces fill the rest. Reassemble, then test the new code several times with the lock still in hand before it goes anywhere near the gate. Full detail with photos: the bench method and Borg standard chambers, plus the series instructions (PDF).
Take the lock off the gate and work at a clean, well-lit bench. Remove the two red screws and lift the cover plate carefully - there are springs beneath it. With the coding chamber open and the C code piece held down, use the supplied tweezers to rearrange the code pieces: red coded pieces go in the button positions you want in your new code, blue uncoded pieces fill the rest. Reassemble, then test the new code several times with the lock still in hand before it goes anywhere near the gate. Full detail with photos: the bench method and Borg standard chambers, plus the series instructions (PDF).
How do I engage and release the holdback?
With the latch retracted (correct code entered, or the handle already held open), the holdback device locks the inside paddle handle in the open position so the latch stays withdrawn until you release it manually. It is a mechanical hold, not a timer - the gate stays free until someone physically returns the handle to normal. If holdback is never wanted on site, remove the device from the lock body before installation rather than trying to disable it after fitting.
With the latch retracted (correct code entered, or the handle already held open), the holdback device locks the inside paddle handle in the open position so the latch stays withdrawn until you release it manually. It is a mechanical hold, not a timer - the gate stays free until someone physically returns the handle to normal. If holdback is never wanted on site, remove the device from the lock body before installation rather than trying to disable it after fitting.
What if the code is forgotten or the keypad is playing up?
There is no key override on this model, so a forgotten code means a locksmith call rather than a key backup - worth factoring in if you want a fallback, in which case the BL3175GATEK or a DKO model adds one. If a keypad genuinely jams and cleaning plus lubrication does not fix it, contact us - do not dismantle beyond the documented code change procedure or the warranty is void.
There is no key override on this model, so a forgotten code means a locksmith call rather than a key backup - worth factoring in if you want a fallback, in which case the BL3175GATEK or a DKO model adds one. If a keypad genuinely jams and cleaning plus lubrication does not fix it, contact us - do not dismantle beyond the documented code change procedure or the warranty is void.
How long can the code be, and how many combinations are there really?
Over 8,000 combinations - the figure Borg's BL3000 Series Brochure gives for the BL3100. Borg codes are pressed in any order - the chamber reads which buttons are coded, not the sequence. Most sites settle on four to five digits; avoid obvious picks like unit numbers or years, since a code change on this model is done On The Bench.
Over 8,000 combinations - the figure Borg's BL3000 Series Brochure gives for the BL3100. Borg codes are pressed in any order - the chamber reads which buttons are coded, not the sequence. Most sites settle on four to five digits; avoid obvious picks like unit numbers or years, since a code change on this model is done On The Bench.
Egress, Compliance and Suitability
Is this lock fire rated or BCA compliant for egress doors?
No fire rating is claimed for this product, and it is a gate lock rather than a doorset hardware item in any case. If the opening you are securing is a building doorway with compliance requirements, you need hardware assessed for that role - the Carbine CDL7200LL-KDSC-HD is our dual-keypad heavy duty pick with documented compliance credentials. This lock belongs on gates.
No fire rating is claimed for this product, and it is a gate lock rather than a doorset hardware item in any case. If the opening you are securing is a building doorway with compliance requirements, you need hardware assessed for that role - the Carbine CDL7200LL-KDSC-HD is our dual-keypad heavy duty pick with documented compliance credentials. This lock belongs on gates.
Someone can reach over my gate - is a single-sided lock still worth it?
For most side and service gates, yes - it stops casual walk-in access and the reach-over trick takes real effort and height. For anywhere the reach-over risk is a genuine concern - low gates, gates next to something climbable, or higher-security applications - move up to a back-to-back model like the BL3430GATE, which needs the code from both sides. See double-sided gate locks explained.
For most side and service gates, yes - it stops casual walk-in access and the reach-over trick takes real effort and height. For anywhere the reach-over risk is a genuine concern - low gates, gates next to something climbable, or higher-security applications - move up to a back-to-back model like the BL3430GATE, which needs the code from both sides. See double-sided gate locks explained.
How secure is a mechanical keypad gate lock?
It is convenience-grade security done properly: it stops casual entry and gives simple, keyless one-way access control. It is not a high-security product - codes can be shared or observed, there is no key backup on this model, and the gate itself is usually the weaker element (most gates can be climbed). Match the lock to the threat: for a side gate or plant enclosure it is well matched; for genuinely high-value targets, layer it with other measures. Our latch vs bolt security comparison is a straight-talking read on where these locks sit.
It is convenience-grade security done properly: it stops casual entry and gives simple, keyless one-way access control. It is not a high-security product - codes can be shared or observed, there is no key backup on this model, and the gate itself is usually the weaker element (most gates can be climbed). Match the lock to the threat: for a side gate or plant enclosure it is well matched; for genuinely high-value targets, layer it with other measures. Our latch vs bolt security comparison is a straight-talking read on where these locks sit.
Weather and Maintenance
Marine Grade vs Marine Grade Pro - which do I actually need?
This model's marine grade keypad (salt spray tested to 1,000 hours) with a black powder coat housing handles normal Australian outdoor exposure, including coastal suburbs, very well. MG Pro adds Borg's full marine external coating across the lock and is the right call within the salt-spray zone - beachfront, marina, and exposed headland sites. If you are on the fence, the deciding factors are laid out in MG Pro and ECP explained.
This model's marine grade keypad (salt spray tested to 1,000 hours) with a black powder coat housing handles normal Australian outdoor exposure, including coastal suburbs, very well. MG Pro adds Borg's full marine external coating across the lock and is the right call within the salt-spray zone - beachfront, marina, and exposed headland sites. If you are on the fence, the deciding factors are laid out in MG Pro and ECP explained.
What maintenance does an outdoor keypad lock actually need?
Little, but not none. Monthly, a light spray of silicon-based lubricant (such as GT85) on the keypad, lever and exposed latch, wiping off the excess so grit does not stick - never WD-40 or other oil-based lubricants, which attract dirt, and never graphite. A freshwater rinse of the keypad helps if you are near salt. Annually, a full service: the lock comes off the gate, the inside is sprayed through the code piece holes on the reverse of the keypad, and every button, the lever and the handle are cycled to confirm smooth operation. The routine is in the Borg Lock Servicing Guide (PDF).
Little, but not none. Monthly, a light spray of silicon-based lubricant (such as GT85) on the keypad, lever and exposed latch, wiping off the excess so grit does not stick - never WD-40 or other oil-based lubricants, which attract dirt, and never graphite. A freshwater rinse of the keypad helps if you are near salt. Annually, a full service: the lock comes off the gate, the inside is sprayed through the code piece holes on the reverse of the keypad, and every button, the lever and the handle are cycled to confirm smooth operation. The routine is in the Borg Lock Servicing Guide (PDF).
Will rain or a storm stop it working?
No - there is nothing electronic to short out and no battery to fail. The lock is designed for external metal gates exposed to the weather; the mechanical chamber keeps working wet or dry. That reliability in weather is a core reason gate installers keep choosing mechanical digital locks over battery keypads for gates.
No - there is nothing electronic to short out and no battery to fail. The lock is designed for external metal gates exposed to the weather; the mechanical chamber keeps working wet or dry. That reliability in weather is a core reason gate installers keep choosing mechanical digital locks over battery keypads for gates.
Choosing Between Models
Why would I pay more for a different model in this family?
The BL3150GATE adds a second keypad for back-to-back code control; the BL3175GATEK adds both back-to-back keypads and a key override; the BL3400MGPROECP steps up to Easicode Pro on-gate code changes and the full MG Pro coating. If none of that matters to your gate, BL3100BLK is the simplest and most compact way into the family.
The BL3150GATE adds a second keypad for back-to-back code control; the BL3175GATEK adds both back-to-back keypads and a key override; the BL3400MGPROECP steps up to Easicode Pro on-gate code changes and the full MG Pro coating. If none of that matters to your gate, BL3100BLK is the simplest and most compact way into the family.
What if this style of gate lock is not quite right for my gate?
Borg makes gate locks in other formats: the BL2615MGPROECP horizontal rim deadbolt suits gates needing a deadbolt rather than a latch, and the heavier Borg BL7701 suits busy commercial doorways rather than gates. If your gate currently relies on a magnetic latch, read why magnetic gate latches can be problematic before combining one with any keypad lock.
Borg makes gate locks in other formats: the BL2615MGPROECP horizontal rim deadbolt suits gates needing a deadbolt rather than a latch, and the heavier Borg BL7701 suits busy commercial doorways rather than gates. If your gate currently relies on a magnetic latch, read why magnetic gate latches can be problematic before combining one with any keypad lock.
Related Products and Guides
The BL3100-BL3400 gate lock family: BL3100BLK (this product), BL3150GATE, BL3175GATEK, BL3400GATE, BL3400MGPROECP, BL3400DKOMGPROECP, BL3430GATE, BL3430MGPROECP, BL3430DKOGATE, and the flagship BL3430DKOMGPROECP.
Alternatives: the BL2615MGPROECP rim deadbolt gate lock, and for heavy-duty doorways the Borg BL7701 or Carbine CDL7200LL-KDSC-HD.
Accessories and spares: standard latch, 50mm latch extension, gate strike, round post kit, and fixing pack.
Guides worth reading: gate locks in the mech-digi buyers guide, double-sided gate locks, narrow gate posts, changing codes, latch vs bolt, passage vs holdback modes, MG Pro and ECP explained, and heavy duty commercial locks.
What's in the Box - Borg BL3100BLK
Standard (non-ECP) series carton contents: 2x pins, 2x sleeves, tweezers x1, hex key x1, 2x through-bolt fixing screws, forend bracket x1, code piece set x4, Borg 3000 Series Lock x1. The tweezers and code pieces are the code change kit for this model.
Holdback fitted as standard: the holdback device ships fitted to the inside paddle handle unit. Remove it before installation if you don't want the free-passage function.
Dimensions - Borg BL3100BLK
Perspective view - keypad and lever body dimensions, fixing hole centres, and the 65-80mm adjustable latch projection.
Front profile - 90mm wide, 105mm deep, latch projection 65-80mm adjustable
Side profile - latchbolt and forend fixing detail
Latchbolt projection adjusts 65-80mm with 20mm bolt withdrawal. Measuring for the first time? See how to measure a gate stile.
Borg BL3000 Series - Product Brochure
BL3000 series overview - BL3100, BL3100DKO, BL3130 and BL3130DKO, features and dimensioned drawings. The brochure shows the series with a knob-turn keypad in Black MG Pro; the BL3100BLK we stock has a lever keypad and a black powder coat housing.
The complete leaflet is also available as a download: Borg BL3000 Series Brochure (PDF). For the wider 3400/3430 family, see the Borg BL3400 Series Leaflet (PDF), listed in PDF Files.
PDF Files - BL3100BLK
Borg BL3000 Series Brochure (PDF)
Borg's one-page brochure for the BL3000 gate lock series (BL3100, BL3100DKO, BL3130 and BL3130DKO) - features, the 30-60mm post range and dimensioned drawings. It shows the series with a knob-turn keypad in Black MG Pro; the BL3100BLK we stock has a lever keypad and a black powder coat housing.
Borg's one-page brochure for the BL3000 gate lock series (BL3100, BL3100DKO, BL3130 and BL3130DKO) - features, the 30-60mm post range and dimensioned drawings. It shows the series with a knob-turn keypad in Black MG Pro; the BL3100BLK we stock has a lever keypad and a black powder coat housing.
Borg BL3400 Series Leaflet (PDF)
One-page leaflet for the standard (non-ECP) 3400 and 3430 gate locks in Black Powder Coat - lever handle design, the 30-60mm post range, latch adjustment, fixings and the dimensioned drawings (the lockcase is shared with the BL3000 series, and the front and side drawings on this page come from it).
One-page leaflet for the standard (non-ECP) 3400 and 3430 gate locks in Black Powder Coat - lever handle design, the 30-60mm post range, latch adjustment, fixings and the dimensioned drawings (the lockcase is shared with the BL3000 series, and the front and side drawings on this page come from it).
Borg BL3100-BL3400 Series Instructions (PDF)
Borg's three-page parts list, installation and handing guide for the BL3100-BL3400 gate locks - establishing the hand of the gate, latch projection and position adjustment, and the On The Bench code changing procedure.
Borg's three-page parts list, installation and handing guide for the BL3100-BL3400 gate locks - establishing the hand of the gate, latch projection and position adjustment, and the On The Bench code changing procedure.
Borg Lock Servicing Guide (PDF)
Borg's general maintenance guide for pushbutton keypad locks - monthly silicone-based lubricant care and an annual full service. This is the routine to follow for this lock.
Borg's general maintenance guide for pushbutton keypad locks - monthly silicone-based lubricant care and an annual full service. This is the routine to follow for this lock.
Borg Locks Warranty
Borg products sold in Australia are covered against mechanical defects in materials and workmanship under normal use and service. Warranty claims are handled by Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries.
Warranty Summary
What the Warranty Covers
- Mechanical defects in materials and workmanship
- Defects arising under normal use and service conditions
- Repair or replacement of defective units at the discretion of the Australian distributor (LSC)
What the Warranty Does Not Cover
- Damage arising from misuse, vandalism, or abuse
- Damage resulting from improper installation
- Locks that have been dismantled - dismantling invalidates the warranty
- Normal wear and tear
- Cosmetic damage not affecting function
How to Make a Claim
For full returns and warranty claim procedures, visit our Returns & Warranty page - this is kept up to date and is the authoritative reference for current claim steps.
- Contact Terry's Tradies Pty Ltd first if you purchased through us or one of its associated trading names - we will assess the issue and manage the warranty process with LSC on your behalf. You do not need to contact LSC or Borg Locks UK directly.
- Have your proof of purchase ready (receipt or order confirmation).
- Warranty claims for Borg products in Australia are processed through LSC, the authorised Australian importer and distributor. Where an item is returned to LSC, freight charges must be prepaid and the item returned within the warranty period.
- If LSC finds the returned item to be defective, it will be repaired or replaced, and a detailed assessment report is provided to the customer after examination.
Australian Consumer Law
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. The Borg manufacturer warranty above operates alongside - and does not limit - these statutory rights.
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. The Borg manufacturer warranty above operates alongside - and does not limit - these statutory rights.
Confused? Overwhelmed? We get it.
Choosing the right smart lock can be genuinely tricky - door types, backsets, app platforms, compatibility with your existing hardware... there is a lot to consider. We have decades of experience fitting locks of all types, including smart locks, and we are happy to help.
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