Prime-Line U 10539 Lock and Door Reinforcer &ndash; Reinforce and Repair Doors, Add Extra Security to your Home and Prevent Unauthorized Entry - 5-1/2 in, 2-3/8 in. x 1-3/4 in, Stainless Steel REINFORCE AND REPAIR DOORS  Reinforce weak spots on entry doors and repair damaged areas with this lock and door reinforcer. ADDITIONAL HOME SECURITY  Securing the weak spot of an entry door with a stainless steel lock and door reinforcer can add additional home security and help you rest easy knowing youre preventing forced entry. CAN BE USED - This combo lock and door reinforcer can be used on wood or metal doors with mortise or drive-in latches. It also accommodates key-in knob locksets, deadbolts or combination locksets. EASY INSTALLATION  Installation is a breeze and all fasteners are included  extra security and peace of mind can be achieved in just minutes! FITS  1-3/4 in. thick doors, 2-1/8 in. bores, 2-3/8 in. backset, 5-1/2 in. hole centers, 3-7/8 in. width x 10-7/8 in. height.