Lockton Euro Smart Mortice Lock Hinged Door 28/85mm

LOCKTON 'E-Series' Euro Smart Mortice Lock (Hinged Door) - 28mm Backset (SML-H28)

The LOCKTON 'E-Series' Euro Smart Mortice Lock is a hinged-door mortice lock designed for use in smart euro lock configurations. This model is the 28mm backset option (Art ID SML-H28) with a 85mm pitch, commonly selected for very narrow stiles where a compact door preparation is required.

Key Features

• Hinged door euro smart mortice lock format.
• 28mm backset with 85mm pitch for very narrow stiles.
• 8mm spindle and single throw deadbolt operation.
• Designed for use with smart euro locks that rely on a mortice lock for mechanical function.

Specifications

• Brand: LOCKTON
• Product Type: Euro smart mortice lock (hinged door)
• Item Code (Art ID): SML-H28
• Backset: 28mm
• Pitch: 85mm
• Spindle Size: 8mm
• Deadbolt Operation: Single Throw
• Faceplate Dimensions (Length x Width): 240mm x 22mm
• Strike Plate Dimensions (Length x Width): 200mm x 24mm

What's In The Box

• 1 x mortice lock case and faceplate (Art ID: SML-H28)
• 1 x strike plate
• 8 x fitting screws
• 1 x cylinder retaining screw
• 1 x fixing tab set

Suitable Uses

• Hinged doors being fitted with a euro smart lock that requires a compatible mortice lock body.
• Narrow stile doors where a 28mm backset suits the existing or required preparation.
• Replacement of an existing euro mortice lock where maintaining spindle and cylinder alignment is critical.

Compatibility

• Commonly used with: Lockton ELEV36 as well as MLA210, MLA231, MLA236 and MLNX5 McGrath smart locks.
• Also reported by locksmiths to suit: Au Smart Lock, Austyle, Zanda and other euro mortice smart locks that rely on a standard hinged-door euro mortice format.
• Important: Compatibility depends on door preparation, backset and pitch. Always confirm measurements before ordering.

Smart Lock Use Only

• This mortice lock is designed specifically for smart lock installations.
• Not suitable for use with standard mechanical lever sets or key-only mortice lock applications.
• Intended for euro smart locks that rely on the mortice lock for mechanical operation.

LOCKTON 'E-Series' Smart Mortice Lock (Hinged Door) - Item Code Family

Warranty

• Warranty: 3-year warranty for added peace of mind.

Download PDF Resources

Lockton Smart Mortice Hinged Installation Template (All Backsets)

Frequently Asked Questions

Is SML-H28 suitable for all smart euro locks?
No. It is designed for smart locks that use a standard hinged-door euro mortice format. Always confirm backset and pitch before ordering.

Does this mortice lock suit sliding doors?
No. This is the hinged door mortice lock version. Sliding doors use a different mortice lock format.

What is the most common ordering mistake?
Choosing the wrong backset. Always measure from the door edge to the centre of the spindle to confirm the correct size.

Additional Information

• Backset selection: 28mm is typically used where door construction offers very limited space behind the faceplate, such as narrow aluminium stiles.
• Retrofit advice: If replacing an existing mortice lock, confirm spindle and cylinder centres before removing the old lock to avoid unnecessary door modification.
• Installer tip: Use the installation template and physically check alignment on the door before committing to drilling.