MPN: 6321 Hardened boron alloy shackle for superior cut resistance 5-spool pin tumbler cylinder for added pick resistance Body and cylinder covers on Weather Tough® padlocks protect locks from water, dirt and grime Removable cylinder can be replaced or repinned Dual ball bearing locking mechanism resists pulling and prying Laminated steel body for superior strength High security solid iron shackle shroud resists harsh physical attacks Iron shroud protects shackle from bolt cutters and dual ball locking mechanism resists pulling and prying, while the heavy-duty laminated steel body contruction withstands physical attacks Specifications Type Security Padlock Body Width 2-3/8" Shackle Diameter 5/16" Shackle Clearance Height 3/4" Shackle Clearance Width 7/8" Body Material Laminated Steel Shackle Material Boron Steel Colour Black Key Type Keyed Different Shipping Weight 1.4 lbs. Body Thickness 1" Shackle Clearance B" 3/4 Shackle Clearance C" 7/8 Shackle Clearance A" 7/8