The 5KAD Laminated Padlock features a 2in (51mm) wide laminated steel body for maximum strength and reliability. The 3/8in (10mm) diameter shackle is 1in (25mm) long and made of hardened boron alloy, offering maximum resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual locking ball bearings provide resistance against prying and hammering. The Limited Lifetime Warranty provides peace of mind from a brand you can trust. Features: 2in (51mm) Wide laminated steel body for superior strength Hardened boron alloy shackle for maximum cut resistance Dual ball bearing locking for maximum pry resistance 4-pin cylinder for added pick resistance Keyed Alike Zinc-plated coating to provide rustproof protection Professional contractor-grade padlock designed to fulfill the demanding needs of small businesses and contractors