Interchangeable Faceplate Kits for Latchbolts and Deadbolts. 1500 & 1600 1LB Faceplate Kit for Latchbolts includes: 1J, 1K, 1KD, 1KM Faceplates.1LB Option The Latchbolt Solution: Includes the hardware to accommodate every cylindrical and mortise lock up to a 3/4" latchbolt. For metal frame applications.