Master 6121KA Weather Tough Rekeyable Padlock. 2 1/8" wide laminated steel body with 5/16" diameter hardened boron alloy shackle. Padlock body is weather protected by a plastic cover with rubber shackle hole seals and plastic keyway cover. 1 1/8" shackle clearance. Dual ball bearing locking. Rekeyable 5 pin 6000BK M18 keyway brass lock cylinder with spool pins making it difficult to pick. Padlock are keyed alike to 13G151 key. Includes 2 keys.