Check the listing for details. MASTER LOCK 21LJ Keyed Padlock, 3/4 in,Rectangle,Silver 1U125. Condition: New. Listed at 32.27 USD. Padlock, Shackle Dia. 5/16 in, Shackle Height 2 1/2 in, Shackle Width 3/4 in, Shackle Material Steel, Body Height 2 13/32 in, Body Width 1 3/4 in, Body Thickness 7/8 in, Body Material Steel, Number of Bumpers 2, Number of Pins 5 Pin, Key Type Different, Control Key Registration Required No, For Use With Gates, Cribs, Vending Machines, Commercial, Automotive, Body Color Silver, Body Finish Laminated, Keyway Type Master K27, Weather Resistant No, High Security Yes, Interchangeable Core No Laminated steel lock body padlocks have laminated bodies that are made up of plates of steel fastened with steel rivets and are used for securing goods. They're not as strong as solid locks as the steel rivets can be tampered with. These padlocks are commonly used in indoor applications as they are less cor.