This Prime-Line C 12807 Mortise-Style Sliding Door Handle Set makes the DIY project a breeze. The patio door handle set comes with matching inside and outside bronze diecast handles. Installation is quick and easy, all fasteners necessary are included, and the set is non-handed, allowing it to be used on both left and right-handed patio sliding doors. It is a mortise style and fits 3-15/16 inch hole spacing and 1-5/8 inch to 1-3/4 inch thick doors. The door handle set is constructed of bronze painted diecast materials, perfect for your sliding patio door. Because there are multiple internal mortise locks that are compatible with this handle set, a mortise lock component is not included with this handle set. Although the C 12807 Sliding Door Handle Set comes non-keyed, Prime-Line Products does manufacture other components that can convert this set to a keyed-locking handle set. This set includes two sets of installation screw lengths to accommodate varied door thickness and fasteners should be hand tightened only. (Mortise lock is sold separately)