Padlock, Shackle Dia. 5/16 in, Shackle Height 3/4 in, Shackle Width 25/32 in, Shackle Material Hardened Steel, Body Height 2 3/16 in, Body Width 1 3/4 in, Body Thickness 7/8 in, Body Material Brass, Number of Bumpers 1, Number of Pins 6 Pin, 7 Pin, Key Type Coreless, Control Key Registration Required No, For Use With No. 23-030 Series Large Format Interchangeable Core Cylinders, Body Color Brass, Body Dia. 1 25/32 in, Weather Yes, High Security Yes, Interchangeable Core Yes WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov -