The 855 series features Key Wind operation which allows the door to be locked and unlocked by full rotations of the key.
The latch is retracted by the key or the handle.
Type 1 refers to 4 roller lo...
The 855 series features Key Wind operation which allows the door to be locked and unlocked by 2 turns of the key. The latch is retracted by the key or the handle. Type 2 refers to 2 roller, 2 mushroom...