The Master Lock No. 140T solid body padlocks feature a 1-9/16 inch (40 mm) wide solid brass lock body that is strong, durable and resists corrosion. The 1/4 inch (6 mm) diameter shackle is 7/8 inch (22 mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual locking levers provide resistance against prying and hammering.