The Master Lock commercial Magnum no. M5KA laminated steel padlock with stainless steel body cover, keyed alike - multiple locks open with the same key - features a 2in (51mm) wide laminated steel body encased in a stainless steel body cover for maximum strength The 3/8in (8mm) diameter octagonal shackle is 2-1/2in (64mm) long and made of chrome-plated boron carbide, 50% harder than hardened steel, offering maximum resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual locking ball bearings provide maximum resistance against prying and hammering. Commercial Magnum offers a higher level of security for applications in outdoor, corrosive and caustic environments. • Stainless steel body cover and top and bottom plates for exceptional weatherability • 2in (51mm) wide laminated steel body for superior durability • 2-1/2in (64mm) octagonal boron carbide shackle is 50% harder than hardened steel • Chrome-plated shackle for excellent rust resistance • Superior pry resistance with dual-ball bearing locking • Can be keyed into existing K1 or WP4 edge keyway UPC: 071649290350 Weight: 0.5 lbs RKU: LOW2412343