Cylinders

Rim

Installed with long screws that hold the cylinder in place

Tailpiece is a thin length of metal that protrudes from the back of the cylinder, rotating when the key is turned

Tailpieces are typically cut to a specific length

Rim cylinders typically require more space to operate

Rim cylinders are commonly used in conjunction with
-Keyed pull trims
-Residential deadbolt locks
-Exit Control Locks

Mortise

Installed with a cylinder nut that holds the cylinder in place

Tailpiece is typically referred to as a cam which is parallel with the
back of the cylinder, rotating when the key is turned

There are many different types of tailpieces or cams and ensuring
you have the proper cam for your application can be challenging

Most commonly used on
-Keyed lever trims
-Most keyswitches
-Cylinder dogging on exit devices

SFIC Interchangeable Core Rim Cylinder Housing

SFIC Interchangeable Core Mortise Cylinder Housing