Value priced security for basic applications. 1-1/2" (40mm) wide aluminum case. 4-pin tumbler locking mechanism. 1/4" (6mm) hardened steel shackle. Clearances: Vertical 7/8" (22mm); horizontal 13/16" (21mm). Locks keyed alike within each pack only and not from package to package. 2 keys included. Aluminum lock body uses M13 blank available from the RSC, or K130BOX available from the vendor.