Padlock Shackle Dia 5/16 in Shackle Height 2 1/2 in Shackle Width 13/16 in Shackle Material Boron Body Height 1 1/2 in Body Width 1 3/4 in Body Thickness 3/4 in Body Material Stainless Steel Number of Bumpers 2 Number of Pins 4 Pin Key Type Different Control Key Registration Required No Opens with Key No Varies For Use With Lockout/Tagout Security Body Color Silver Body Dia 1 5/16 in Body Finish Laminated Keyway Type Master K1 Weather Resistant Yes High Security No