No. 1 Laminated Steel Padlock, 5 16 in dia, 3 4 in W x 15 16 in H Shackle, Silver Gray, Keyed Alike, Keyed 0303 no checkout and countless other applications and countless other applications this bright LED light creates a clean white beam Long run times combined with high and low light output modes 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 from drilling and prying Dual ball bearings locking for maximum pry resistance making it ideal for industrial applications Non rekeyable cylinder or universal pin