This genuine Union L22180 gearbox suitable for aluminium doors would have originally been supplied with extension pieces which were either hooks or deadbolts
Extension pieces are no longer manufactured
Anti-thrust snib engages upon closing the door and automatically deadlocks the latch
No strike plate or faceplate supplied
Operation: Lift Lever or Split Spindle
Latch reversal: Push latch clear of the faceplate, twist the latch to reverse and release
