Door Lock Mechanism Terminology

When it s locked the cylinder engages a series of spring loaded pins which keep the cylinder from turning.

Door lock mechanism terminology.

Cylinder lock body the cylinder or lock body is the part of the door lock where you insert the key. Single cylinder door locks require a key to lock unlock your door from the outside. And have a thumbturn mechanism on the inside to lock unlock your door. The single cylinder function is an option for locks such as deadbolts and entry sets.

The bar that connects knobs or levers through the door and operates the lock mechanism. When you insert a key the uneven edge pushes the pins upward to fit the key s height in that location within the lock body. Door and lock terminology multi point lock describes a type of lock mechanism that has more than one locking point. The spindle is the bar that connects knobs or levers through the door and operates the lock mechanism.

It usually has a minimum of three locking points plus latch spread strategically over the length of the door. Multi point locks are typically used on pvcu or composite doors.