Easily replaces most sliding glass door keepers / strikes (See line drawing photos) Passes 800lb. pull test Surface mount; Adjustable; Zinc die cast Available in multiple finishes FPL #3 Sliding glass door mortise lock and finish-matching adapter is available but sold separately This surface mount, adjustable keeper/ strike will fit most vinyl, aluminum, and wooden sliding glass doors on the market. Please see dimension photo to insure fitment. Zinc die cast keeper passes 800lb. pull test and is available in multiple finishes. Package includes all installation screws. The FPL #3 mortise lock with finish-matching adapters is also available and listed separately. Search for FPL #3-45-S.