Lockton Euro Smart Mortice Lock Body - Suits Hinged Door - 45mm Backset - 240x22mm Faceplate

Lockton E-Series Euro Smart Mortice Lock Body - Hinged Door - 45mm Backset - 240x22mm Faceplate

This Lockton E-Series euro mortice lock body suits hinged and swing-style doors. It is the internal lock mechanism installed inside the door when fitting a Lockton or McGrath smart lock to a standard mortice prep. The body contains the reversible latch and the euro cylinder-actuated deadbolt — the smart lock handle and keypad mount separately over the top and drive this body via an 8mm spindle.

Available with a 45mm backset, this body suits doors where the existing or planned mortice prep is at 45mm from the door edge to the centre of the spindle hole. The 240mm x 22mm faceplate fits flush into the standard mortice door edge channel. Lock centres are fixed at 85mm — the industry standard for this class of mortice body.

This mortice body is mechanically interchangeable with the McGrath Locks equivalent MLEM4585SS. If you have a McGrath smart lock and need to replace the mortice body, this Lockton part is a confirmed drop-in replacement at this backset.

Key Features

• SS304 stainless steel latch and deadbolt — corrosion-resistant throughout
• Reversible latch — field-adjustable for left-hand or right-hand swing doors without tools
• 1.5mm thick SS304 steel case body — robust and dimensionally consistent
• 8mm square spindle hub — accepts all standard Lockton and McGrath smart lock lever spindles
• 85mm lock centres — matches the pinhole spacing on all Lockton E-Series and McGrath ML-A210, ML-A231, ML-A236, and ML-NX5 smart lock handles
• Faceplate 240mm x 22mm x 3mm — standard mortice door edge channel fit
• Deadbolt manually thrown by lifting the lever handle — no separate turn knob required
• Meets ANSI/BHMA standards — 500,000-cycle tested; passes BHMA Level 2 and Level 3
• CE marked
• Supplied with strike plate, strike plate pocket, and fixing screws

Compatibility - Lockton & McGrath Smart Locks

This mortice body is compatible with the following Lockton and McGrath smart locks:

Brand	Smart Lock Model	Notes
Lockton	ELEV36 E-Series (Hinged Door)	Primary Lockton smart lock for hinged doors — uses this mortice body
McGrath Locks	ML-A210 Slimline	Suits all backsets in this range
McGrath Locks	ML-A231	Suits all backsets in this range
McGrath Locks	ML-A236	Suits all backsets in this range
McGrath Locks	ML-NX5	Suits all backsets in this range

The Lockton and McGrath E-Series mortice bodies share the same internal geometry, lock centres, and spindle hub, and are interchangeable where backset sizes align. If you are unsure which backset your door requires, see our guide to measuring your door backset.

Rows in bold indicate the McGrath equivalent of this specific Lockton body. McGrath does not stock the 25mm, 40mm, or 65mm backsets — these are Lockton-only backsets fully compatible with all McGrath smart locks.

What's in the Box

• Lockton E-Series euro mortice lock body — hinged door, 45mm backset (Lockton Art ID: SML-H45)
• Strike plate
• Strike plate pocket
• Fixing screws

Note: The smart lock handle set and keypad are sold separately. This product is the internal lock body only. See the Lockton ELEV36 (Hinged Door) for the complete smart lock lever set.

Suitable Uses

Suitable for: Timber and aluminium hinged doors prepared with a standard mortice slot at 45mm backset. Residential entry, apartment entry, internal doors, commercial entry where a smart lock is being fitted or replaced at this specific backset dimension.

Not suitable for: Sliding doors (see the sliding door mortice range), security screen doors, gate locks, or any door where a different backset measurement is required. Confirm your backset before ordering — see Chapter 02 — Measuring Your Door.

Available Finish Options

• 
  Satin Stainless Steel
  (This Product)
  STK SML-H45 MLEM4585SS

Finish selection does not affect functionality, compliance, or performance.

Lockton E-Series Mortice Lock Range — Hinged Door

This mortice body is available in ten backset sizes from 25mm to 70mm. Choose the backset that matches your door preparation. For sliding doors, a separate hook-bolt mortice range is available — see links below.

For sliding and bifold doors, see the hook-bolt mortice range for sliding doors.

Full Specifications

Dimensions

The dimension drawing below covers all ten backset sizes in the hinged door range. Locate SML-H45 (45mm backset) in the diagram.

Faceplate: 240 x 22mm. Lock centres: 85mm. Case body depth (45mm backset): 61.5mm. Spindle hub: 8mm square.

Frequently Asked Questions

How do I know if 45mm is the right backset for my door?
Measure from the door edge to the centre of the existing spindle hole (or latch hole). If that distance is 45mm, this body is the correct size. If you are preparing a new mortice, the backset is determined by the position of the spindle hole in your smart lock handle set. See Chapter 02 — Measuring Your Door and our backset measurement guide for step-by-step instructions.

Will this body work with my McGrath smart lock?
Yes. The Lockton E-Series hinged door mortice bodies are compatible with the McGrath ML-A210, ML-A231, ML-A236, and ML-NX5 smart locks. They share 85mm lock centres and 8mm spindle hubs. The McGrath equivalent part number for this backset is MLEM4585SS.

Can I reverse the latch handing on site?
Yes. The latch is reversible and can be flipped in the field without tools to suit left-hand or right-hand swing doors. No separate handing version is required. See our door handing guide if you are unsure which handing applies to your door.

Is this a DIY install?
Installation of the mortice body into a pre-prepared door can be completed by a confident DIYer. However, if the door requires new mortice routing or the spindle alignment is off, a locksmith installation is recommended. Terry's offers supply and install on the Gold Coast — see our installation services page. Common DIY mistakes are covered in our installation troubleshooting guide.

Does the mortice body come with a smart lock or keypad?
No. This is the internal lock mechanism only — the body, latch, and deadbolt. The smart lock handle and keypad are sold separately. For a complete hinged door smart lock solution, see the Lockton ELEV36 E-Series Hinged Door smart lock, which includes the keypad lever set and is designed to pair with this body.

Additional Information

Why backset selection matters: Ordering the wrong backset is the most common installation error with mortice smart locks. The backset determines where the spindle sits relative to the door edge — if it does not match your handle set's spindle position, the deadbolt will throw at the wrong point or the latch bolt will not align with the strike. Measure twice before ordering. Our backset guide covers common standard sizes and how to check your existing prep.

Lockton and McGrath — same body geometry, different distributors: Lockton is distributed in Australia by Sieper Group; McGrath Locks are distributed by LSC. Despite this, the E-Series mortice bodies from both brands share the same internal engineering: 85mm lock centres, 8mm spindle hub, and standard euro cylinder slot. The practical difference is branding and the McGrath range's more limited backset selection. For installers who work with both brands, all Lockton bodies at backsets that have a McGrath equivalent are confirmed drop-in replacements. For further context on the TTLock platform that these mortice bodies pair with, see Chapter 14 — TTLock Platform Guide and Terry's perspective on the McGrath/LSC supply chain.

Installation template: A printable installation template for this mortice body range is available as a PDF download below. The template includes fold lines for each backset size — fold on the 45mm line before marking out your door. See also Chapter 12 — common backset installation mistakes.

Other backsets in this range: If 45mm is not the right fit for your door, the same body is available in these backsets: 25mm, 28mm, 30mm, 35mm, 40mm, 50mm, 60mm, 65mm, 70mm. For sliding and bifold doors, see the 28mm sliding door mortice body, 35mm, 20mm, and 45mm.

Warranty

Warranty
Lockton products carry tiered manufacturer warranties — up to 10 years on mechanical locks, 3 years on smart locks and PVD/chrome finishes, and 1 year on electronic door closers, mechanical digital locks, and key accessories. Batteries carry no warranty. Proof of purchase required for all claims. Returns & Warranty | Lockton Warranty Statement

PDF Downloads

Download PDF Resources
Lockton E-Series Mortice Lock - Hinged Door - Dimension Drawings (PDF)
Lockton E-Series Mortice Lock - Hinged Door - Installation Template (PDF)
McGrath ML-Euro-85-Series - Hinged Mortice - Product Brochure (PDF)