mortise cylinders

The Mul-T-Lock Rim Cylinder is suitable for both commercial and residential surface mounted door locksets. Highly flexible it can interface with a wide range of locksets from many  major brands.   It also supports a variety of lock mechanisms.

Mul-T-Lock Mortise Cylinders can be used for both  residential and commercial door locksets. Available in a wide variety of sizes and designed for installation into virtually any existing mortise lockset, they allow you to change the cylinder of your Mortise lock without replacing all of the hardware.

Compatible with most major brands including Adams Rite, Yale, Corbin Russwin, Sargent and more.

Mul-T-Lock's enhanced design mortise locks come with a hardened steel anti-sawing insert in bolt. Available in a variety of sizes and functions with surface-mounted and through-bolted trim.