The Master Lock No. 500KABRK Laminated Steel padlock, Keyed Alike - multiple locks open with the same key - features a 1-3/4in (44mm) wide laminated steel body for superior strength and a 13/16in (21mm) tall, 9/32in (7mm) diameter. Rustproofed for extended wear, the warded locking mechanism minimizes jamming from dirt and grime, making this padlock ideal for manufacturing environments.