Check the listing for details. MASTER LOCK 312KALH Keyed Padlock, 1/2 in,Rectangle,Blue 6MCP8. Condition: New. Listed at 24.55 USD. Padlock, Shackle Dia. 3/8 in, Shackle Height 2 in, Shackle Width 1/2 in, Shackle Material Steel, Body Height 2 13/64 in, Body Width 1 9/16 in, Body Thickness 1 in, Body Material Steel, Number of Bumpers 0, Number of Pins 4 Pin, Key Type Alike, Control Key Registration Required No, Opens with Key No. 3210, Body Color Blue, Body Finish Laminated, Keyway Type Master K1, Weather Resistant Yes, High Security No, Interchangeable Core No, Padlock Body Shape Rectangular, Rekeyable No Covered lock body padlocks have a cover that resists corrosion and scratches, making them ideal for use both indoors and outdoors to secure access to goods. Different cover materials provide different levels of security. They have a long 1.5" or more vertical shackle clearance to secure multiple hasps or fittings. The.