The 315KADHC Covered Laminated Padlock, Keyed Alike - multiple locks open with the same key - features a 1-9/16in (40mm) wide laminated steel body for superior strength and a 3/4in (19mm), 3/8in (10mm) diameter hardened steel shackle with molded cover for excellent cut strength and weather resistance. A yellow, weather resistant thermoplastic cover provides protection against environmental elements such as moisture, dirt & grim. The 4-pin cylinder prevents picking and the dual locking ball bearings provide resistance against prying and hammering. Features: Outdoor protection against moisture, dirt & grime Yellow weather resistant thermoplastic shell designed to withstand the elements 1-9/16in (40mm) wide laminated steel body for superior strength Hardened steel shackle with molded cover for superior cut and weather resistance Dual ball bearing locking for maximum pry resistance 4-pin cylinder for added pick resistance Keyed alike to a specific key code.