Easily replaces many vinyl, aluminum, and wooden sliding door mortise locks (See dimension photo) Durable all steel mortise lock- No die-cast zinc components Round end face plate, Adjustable hook, 45 degree hub, 5-3/8” Screw holes Adapter plate and keeper /strike available in multiple finishes to match your door hardware Package includes mortise lock, keeper / strike, and installation hardware This mortise lock and adapter plate will fit many vinyl, aluminum, and wooden sliding glass doors on the market. Please see dimension photo to insure fitment. All-steel lock mechanism will withstand forced entry loads of 1000lbs and has yellow zinc dichromate (YZD) plating for corrosion resistance. Mortise lock features a round end face plate, adjustable hook, 45 degree hub, and 5-3/8” screw holes. Package includes mortise lock, FPL #6 keeper / strike, and all installation screws. This mortise lock is also available in stainless steel for high humidity and coastal applications. Please search for FPL #3-45-SS.