Briton high quality range of European style lock cases manufactured to meet DIN standards & the recommendations of the DDA (Disabilities Discrimination Act).
These locks are commonly referred to as 72mm locks due to the 72mm measurement between the handle & cylinder. Lever handle fitted to escape side retracts both latch & deadbolt simultaneously. Cylinder retracts deadbolt on first turn & latchbolt on the second turn. Briton Escape Sashlock Case Satin Stainless