BS 10621:2017 specifies performance requirements and test methods for a thief-resistant mechanically operated single-point lock assembly (including locking plates, fixing screws, fitting instructions, cylinders and protective furniture, where appropriate) that:

• a) incorporates a lock conforming to BS EN 12209:2016 that, under normal conditions, can be unlocked from the inside without the use of a key, thereby allowing keyless egress;
• b) can be changed to a secure (no egress) mode by a secondary positive locking action; and
• c) is used in doors, window doors and entrance doors in buildings.

This standard covers only those thief-resistant lock assemblies that are intended for use in dwellings where there is an alternative escape route. It does not cover thief-resistant lock assemblies that provide keyless egress at all times since these are covered by BS 8621, nor does it cover thiefresistant lock assemblies that require the use of a removable key for egress since these are covered by BS 3621.


Cross References:
BS 7398:1991
BS EN 1303:2015
PAS 24:2016
BS EN 12209:2016 BS 3621:2017
BS EN ISO/IEC 17065:2012
BS 8621:2017
305/2011/EU
Construction Products Regulations 2013
Building Regulations 2010


All current amendments available at time of purchase are included with the purchase of this document.