The Master Lock no. 7KA laminated steel padlock, keyed alike – multiple locks open with the same key – features a 1-1/8 In. (29 mm) wide reinforced laminated steel lock body providing extra strength and a 9/16 In. (14 mm) tall, 3/16 In. (5 mm) diameter steel shackle. Dual locking levers provide extra pry resistance making it ideal for industrial applications and the non-rekeyable, 4-pin W7 cylinder helps prevent picking. Keyed alike padlocks available to order to match other locks with the W7 cylinder.