The union b 1k11 c series battleship padlocks are high security closed shackle locks using a 6 lever key for thousands of key combinations the hardened steel shackle is unsprung and features a key retaining mechanism they are anti saw force resistant anti pick and torque resistant keyed to differ supplied with 3 keys specification dimensions hwd 95 x 65 x 27mm shackle diameter 125mm clearance 17mm