CRL Screen and Storm Door Key Cylinder Thumb Turn with Kwikset-Weiser Keyway,Turn with Kwikset-Weiser Keyway CRL Screen and Storm Door Key Cylinder Thumb, This solid brass unit is used with security screen door mortise locking devices with a Kwikset-Weiser keyway and will adjust to most door thicknesses,TheCRL Security Door Key Cylinder with Thumbturn is a solid brass 5-pin tumbler key cylinder with an attached thumbturn, Thumb Turn with Kwikset-Weiser Keyway CRL Screen and Storm Door Key Cylinder.