Prime-Line U 9815 1/4 in. x 2 in. Diecast Construction Sliding Door and Window Lock with Allen Drive Fasteners

This Defender Security door and window lock is constructed of diecast material. It can be used on sliding doors and old-style windows that have raised metal fins, no wider than 1/4 in. The lock is designed as a secondary security locking devise for your sliding door, which can be used in both the closed-door, or slightly-opened for ventilating position, as well as to help keep children from accidentally opening it. 2 tamper-resistant, double hex security screws and a wrench are included with this lock. This lock can also be used with older style metal-framed sliding windows.

• Use with metal-framed sliding doors and older style, metal-framed sliding windows
• Locks are for use on sliding patio doors and windows whose metal fins measure 1/4 in. or thinner
• Each lock features a pair of counter sunk Allen drive fasteners for adding a strong, sure hold
• Heavy-duty cast-metal construction with tamper-resistant double-hex security screw and wrench (included)
• High security sliding patio door and window lock
• Easy to install in less than 10-minutes with a few simple tools
• Used on a variety of sliding patio door systems, in addition to some older horizontal sliding windows
• For further dimensional information, please see the line drawing