American padlock model 2000. Model 2000 features: Unique, one-piece solid body design with locking bolt, 2-7/8" (72mm) wide, Reinforced Die Cast body, Boron Shackle, A = 3/8" (10mm), B = 1-9/32" (15mm),C = 1-23/32" (43mm), 6-pin APT2001 cylinder. Six pin tumbler cylinder for maximum security. Since the lock has no external shackle, it cannot be attacked by using standard bolt cutters. Supplied Keyed Different/Random. For Keyed Alike padlocks click on the related products tab.