Prime-Line 1/4 in. x 1 in. Diecast Construction Black-Painted Window Lock w/Allen Drive Fasteners

These window locks are constructed of diecast material and come in a black-painted finish. They are for use with older-style windows with metal fins no thicker than 3/16 in. The lock is designed as a secondary security locking device for sliding windows, which can be used in both the closed-window, or slightly-opened for ventilating position, as well as to help keep children from accidentally opening windows. A tamper-resistant hex security screw and a wrench are included with these locks.