Stanley best 2.75 in. 8t series backset 7 pin standard strike less core classroom deadbolt, satin chrome

Built to tight tolerances to provide the highest level of mechanical security and enhance the integrity of the lock/full 1" stainless steel throw deadbolt/free-turning wrench-resistant tapered cylinder ring/quick and easy rekeying with best interchangeable cores/ansi a156.36 grade 1 finish:satin chrome country of origin:cn warranty:limited 3 year mechanical and finish warranty