The Master Lock no. 3KALH laminated steel padlocks keyed alike - multiple locks open with the same key - feature a 1-9/16 In. (40 mm) reinforced laminated steel lock body providing extra strength and a 2 In. (51 mm) tall 9/32 In. (7 mm) diameter hardened steel shackle for excellent cut resistance. Dual locking levers provide extra pry resistance making it ideal for industrial applications and the non-rekeyable 4-pin W1 cylinder helps prevent picking. Keyed alike padlocks available to order to match other locks with the W1 cylinder.