This is the 85 x 22mm zinc plated reversible Loft Hatch Door Lock (Rim) and key for use on a small attic door. It allows it to be locked securely with a T bar key, simply insert the key turn the key and the door is opened or closed.
They are zinc plated rim lock Specification: Length: 85 mm Width: 22 mm Application: Rim Hand Reversible Type: Lock Size: 85 x 22.
Ideal for timber or metal loft door hatches.