American Lock A21 1-3/4in (44mm) Solid Brass Padlock with 2in (51mm) Shackle Keying:Master Keyed (1) 491B for 480V and

(1) 491B for 480V and (1) 493B for 120/240V

M176XDLHHC Solid Body Padlock features a 2in (51mm) wide zinc die-cast body for strength and reliability

Available in keyed alike

Keyed Alike - multiple locks open with the same key - features a 1-1/2in (38mm) wide plastic Orange body and a 3in (76mm) tall

American Lock A21 1-3/4in (44mm) Solid Brass Padlock with 2in (51mm) Shackle Keying:Master Keyed (1) 491B for 480V andThe American Lock No. A21KA Solid Body Padlock, Keyed Alike multiple locks open with the same key features a 1 3 4in (44mm) wide solid brass body to resist corrosion and a 2in (51mm) tall, 5 16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. Ideal for harsh environments, a dual ball bearing mechanism resists pulling and prying while a 5 pin APTC12 non rekeyable cylinder with serrated pins is virtually impossible to pick.