Brand: MASTER LOCK Description: The Master Lock No. 120D Solid Brass Padlock features a 3/4 in. (19 mm) wide solid brass lock body that is strong, durable and resists corrosion. The 5/32 in. (4 mm) diameter shackle is 7/16 in. (11 mm) long and made of steel, offering resistance to cutting and sawing.