Restore security and functionality to your windows with this Prime-Line Window Sash Lock, designed for vinyl and aluminum framed sliding windows. Ideal for replacing loose, worn, or missing locks, this versatile solution enhances home security while maintaining a clean, updated look. The cam-action locking mechanism securely fastens the inner sash to the outer sash without requiring a separate keeper, simplifying installation and compatibility.Engineered to fit single-hung, double-hung, and select horizontal sliding windows, this lock mounts directly onto the checkrail of the innermost sash and engages the outer sash for a tight, secure hold. Constructed from durable vinyl composite material, it resists corrosion and wear while blending seamlessly with existing white window hardware.Installation is quick and easy with included fasteners and can be completed using a standard Phillips head screwdriver. Featuring a 3/8 in. latch projection and 2-1/4 in. mounting hole spacing, this sash lock offers reliable performance and broad compatibility. Whether upgrading existing hardware or completing repairs, this lock provides a simple, effective solution for improved window safety and peace of mind.