Chubb 5 lever insurance rated lock
ERA 5 lever Sash Lock
Union Assa Abloy insurance Sash Lock
Union Insurance rated Deadlock
Legge 5 lever BS3621 Locks
Yale insurance rated nightlatch
ERA insurance rated nightlatch
Standard nightlatch
not covered by insurance
Nightlatch not covered by insurance
Older type mortice locks
not covered by insurance
Older type dead locks
not covered by insurance
Older type nghtlatch
not covered by most insurance
Although a substanstial lock the chubb detainer lock is not BS3621 rated