The Master Lock no. 140D solid body padlock features a 1-9/16 inch (40mm) wide solid brass lock body that is strong, durable and resists corrosion. The 1/4 inch (6mm) diameter shackle is 7/8 inch (22mm) 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. The limited lifetime warranty provides peace of mind from a brand you can trust.