Defender Security U 10546 Stainless Steel Lock and Door Reinforcer assists in preventing forced entry by reinforcing the weak spot of an entry door. It can be used to reinforce and repair both metal and wood doors. Made of stainless steel construction, the lock reinforcer plate comes finished in antique brass. All the necessary mounting hardware is included for a quick and easy installation. The lock reinforcement plate is pre-punched for mounting. The reinforcer is designed for 1-3/4 inch thick doors that have mortise or drive-in latches. It features two 2-1/8 inch bores that are 5-1/2 inch on center, with 2-3/4 inch backsets. The door reinforcer is non-recessed. Please refer to the line art drawing for dimensions and compare to your needs before purchasing (Not Universal).