Defender Security U 9971 Deadlock – Jimmy-Resistant Design Prohibits Forced Entry by Spreading of Door Frames – Single Cylinder Diecast Metal Lock With a White Finish and Angle Strike
- ...n be installed inside or outside, on left- or right-hinged doors..
- INCLUDES – This door lock includes an angled strike, a rim cylinder, two keys (keyed differently), a cylinder trim ring, fasteners, a mounting plate, instructions and a tamper-resistant shutter guard. This lock requires a 1-1/4” hole and uses Segal keyway..
- INSTALLATION TIP – Snap-off or cut-off end sections of tailpiece as needed, if it is too long for your door. Having the tailpiece too long can negatively affect the performance of the lock. Use pliers to snap-off, a hacksaw or small disk to cut-off, and a file to remove sharp edges and burrs..