Baldwin Reserve Deadbolts. 2-1/8" Cross Bore. 1" edge bore for latch. Door thickness: 1-3/8" to 2" standard, up to 2-1/2" doors optional through thick door option or service part kit. Baldwin C-Keyway standard. Adjustable 2-3/8" or 2-3/4" backset. Square corner strike standard. 1" Throw. Exceeds ANSI/BHMA Grade 2 security.