MANUFACTURER: American LockSolid Steel Padlock13/4 (44mm) wide x 3/4 (19mm) thick, solid steel padlock5/16 (8mm) diameter, 11/8 (28mm) high hardened steel shackleNonremovable key, 5pin Bumpstop cylinder to be compliant with current ASTM F883 padlock performance standardStamped USKeyed alike in sets of 5Commercial boxed