410 - 410 high security sash lock


Locks for shops and entrance doors to private houses, industrial premises, offices or for any situation where a key operated hookbolt lock is required plus a latch and lever handles.

Available with single cylinder and thumbturn, or alternatively with double cylinders or single cylinder only.

Supplied as standard with striking plate.

Cylinder and accessories bolt through lockcase for added strength. Key can be removed in locked or unlocked position.

For finishes and dimensions see Lockcases Information appendix.

When ordering please specify hand and door thickness.


Special high security lockcase. Hardened steel hookbolt thrown 23.5mm by single 360° turn of key or thumbturn.

Latchbolt reversible without opening lockcase.

Available with 35mm, 50mm or 70mm backset.

Option of MA microswitches to monitor hookbolt thrown and withdrawn status.


Key operates hookbolt.

Lever handle retracts latchbolt.

Turn operates hookbolt.

Lever handle retracts latchbolt.


Product has been successfully type-tested for conformity to BS EN 12209.
Regular audit testing is undertaken.