Independence2 i.2-DB Grade 2 Polished Brass Commercial Single Cylinder Deadbolt Lock with Thumb Turn Complies with ANSI A156.5 Grade 2 lock Single cylinder with thumb turn Solid brass 6-pin cylinder Adjustable for doors 1-3/8-inches to 1-3/4-inches thick 2-3/4-inches latchbolt Made in Taiwan Manufactured by Independence2