Yale Presslock
https://cdn.prod.website-files.com/69fd47b6fd25e9b4c1f02fce/6a7928056cbd40074552f5e3_MC81C4W_resize.jpeg
The Presslock is a secure locking window bolt designed for use in a variety of applications. Suitable for use on sliding, double hung, awning and casement windows the Presslock provides a secure deadlocking solution.