3020 - 3020 escape sash lock


Escape sash locks are particularly for residential entrance doors, and comply with BS 5588 Part 1, section 18.8.2 (a). Their simple operation makes them ideal for use by the elderly.

Available with single cylinder only. Uses either Euro or UK Oval profile cylinders.

Supplied as standard with security box striking plate. Both square and rounded faceplates are available as standard.

Lockcase must be used with a double action handle eg. ASSA 3350.

For finishes, handing and dimensions see Lockcases Information appendix.

When ordering please specify hand, direction of door opening and door thickness.



Hardened steel deadbolt thrown 16mm by internal lever handle or by 360° turn of key.

Latchbolt reversible without opening lockcase.

Available with 57mm backset.


Exterior [PROD3] Interior

Key operates deadbolt.

Lever handle retracts latchbolt.

Pushing handle down retracts deadbolt and latchbolt.

Pushing handle up throws deadbolt.
Optional indicator shows when deadbolt is thrown.




Please note that when specifying split follower locks it is important to state the direction of door opening as well as the handing.