No. 1 Laminated Steel Padlock, 5/16 in dia, 3/4 in W x 15/16 in H Shackle, Silver/Blue, Universal, Not Keyed Non-rekeyable cylinder or universal pin, laminated steel body for superior strength Hardened boron alloy shackles for extra cut resistance Proprietary rustproofing for longer life Commercial grade padlock features superior protection