The Master Lock No. 5UPLF Universal Pin Laminated Steel Padlock features a 2 inch (51 mm) wide laminated steel body for superior strength and a 1-1/2 inch (38 mm) tall, 3/8 inch (10 mm) diameter hardened boron alloy shackle for superior cut resistance. A great choice for keyed alike applications, the padlock can be pinned to customers key in minutes. Uses No. 376 Universal Pin Keying Tool.