Master Lock 6121 2-1/8" Pro Series Weather Tough Pad Lock Keyed Different (6pk) Shackle: 1-1/8". 2-1/8" wide laminated steel body for superior strength. Hardened boron alloy shackle for superior cut resistance. 5-spool pin tumbler cylinder for added pick resistance. Removable cylinder can be replaced or repinned. Dual ball bearing locking mechanism resists pulling and prying. Body and cylinder covers protect locks from water, dirt and grime. Heavy steel bodies withstand forcible attacks. 5 pin W6000 cylinder.
