This standard T-strike is constructed of solid brass and comes in a matte black finish. It can be used on both wood and metal jambs, and it is compatible with most Grade 2 locksets. This security strike meets ANSI A156.2. It features an easy to install design with 2-1/8 inch hole centers. For best results, follow the installation instructions included with each package. These strikes are easy to install using only a few simple tools.