581 Electric mortice lock SpecificationsBolt and latch operated by key or mechanical/electric button FeaturesForend 23mm with square edgeDin holes on cylinderBacksets 40, 50 and 60 mmStrike plate includedPainted steel finishPair of contacts includedFixing screws for lock, strike plate includedCylinder to be ordered separately Ordering Options 5810040 Lock with latch and bolt withdrawal, 2 throws 5810050 Lock with latch and bolt withdrawal, 2 throws 5810060 Lock with latch and bolt withdrawal, 2 throws Close 580 Electric mortice lock