BEST VALUE PATIO DOOR LOCK SET: Our replacement patio door handle + mortise patio door / sliding door lock is great value. No need to pay more for high priced parts to replace your old or broken white handle & latch.INSTALLATION MADE EASY: Fits sliding patio door handles with 3-15/16” hole spacing & a mortise (latching Style) lock. Remove 2 screws from existing handles, insert latch, align inside and outside handles with pre-drilled door holes, insert screws, tighten and you're done. Includes 6 screws with 3 different sizes: Large 2.16", Medium 1.96", Small 1.57"REVERSIBLE DOOR HANDLE & MORTISE LOCK: Also known as 'non-handed'. Our sliding glass door lock is designed for right or left handed installation. Comes with sliding door latch replacement.NON-KEYED FUNCTION: Our die-cast sliding glass door handle is designed to blend into your existing design. **ATTENTION: The exterior diecast pull is non-keyed. This handle IS NOT CONVERTIBLE WITH KEY FUNCTION AT THIS TIME!ADJUSTABLE LENGTH LATCH: Fully adjustable latch for added convenience. Trim off excess length if necessary to suit your fitment.