Lockton Euro Sliding Mortice Hook Lock - 28mm BackSet

LOCKTON 'E-Series' Euro Smart Mortice Lock (Sliding Door) - 28mm Backset (SML-S28)

The LOCKTON 'E-Series' Euro Smart Mortice Lock is a sliding door mortice lock designed for use in smart euro lock configurations. This model is the 28mm backset option (Art ID SML-S28) with an 85mm pitch and a 270 × 22mm faceplate — suitable for sliding doors with shallow-to-mid backset needs.

Key Features

• Sliding door euro smart mortice lock format.
• 28mm backset with 85mm pitch for modest lock depth installations.
• 270mm × 22mm faceplate matching common sliding mortice preparations for this range.
• Designed for use with smart euro locks that depend on a mortice lock for mechanical operation.

Specifications

• Brand: LOCKTON
• Product Type: Euro smart mortice lock (sliding door)
• Item Code (Art ID): SML-S28
• Backset: 28mm
• Pitch: 85mm
• Faceplate Dimensions (Length × Width): 270mm × 22mm

What's In The Box

• 1 × LOCKTON 'E-Series' sliding door smart mortice lock (Art ID: SML-S28)

Suitable Uses

• Sliding doors being fitted with a euro smart lock that requires a sliding mortice lock body.
• Door preparations needing a 28mm backset, typical of narrower stile cut-outs.
• Retrofit replacements where existing cut-out and alignment must be respected.

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 sliding 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.
• Sliding door mortice formats vary. Confirm your existing mortice layout before ordering.

LOCKTON 'E-Series' Smart Mortice Lock (Sliding 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-S28 suitable for hinged doors?
No. This is the sliding door mortice lock version. Hinged doors use a different mortice lock format.

Does this mortice lock include a euro cylinder?
No. This is the mortice lock case and faceplate only. A euro cylinder and compatible smart lock are supplied separately.

What is the most common installation mistake?
Choosing the wrong backset. Always confirm backset and pitch before ordering.

Additional Information

• Backset selection: 28mm is often chosen for sliding doors with a shallow style or where minimal projection from the edge is needed.
• Retrofit advice: Confirm backset and pitch from existing mortice lock before ordering to avoid unnecessary modifications.
• Installer tip: Use the installation template and perform a dry fit before drilling to confirm alignment.