Defender Security U 9590 Lock and Door Reinforcer, Stainless Steel ? Fits 1-3/4? Product Description Securing the weak spot of an entry door with a stainless-steel lock and door reinforcer can add additional home security and assist in preventing forced entry. Installation is quick and easy, and all fasteners are included ? extra security and peace of mind can be achieved in just minutes This combo lock and door reinforcer can be used on wood or metal 1-3/4? thick doors with mortise or drive-in latches. It also accommodates key-in knob locksets or deadbolts with 2-1/8? bore sizes with a backset of 2-3/8?. The width of this door guard is 3-7/8? and it is 4-1/2? tall. From the Manufacturer This door guard is constructed from solid brass. It helps to protect your door from forced entry. It can be used on wood or metal doors with mortise or drive-in latches. It can also accommodate key-in knob locksets or deadbolts. Features Designed for single bore doors with a 2-3/8 in. backset Helps protect against a forced entry For use on doors 1-3/4 in. thick that have mortise or drive-in latches Stamped stainless steel Pre-punched for mounting Mounting hardware included Reinforces and repairs doors Helps prevent break-ins Use on wood or metal doors with mortise or drive-in latches Accommodates key-in knob locksets or deadbolts For 2-3/8in. backset and 1-3/4in. door thickness USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.