Calibre LS2001 Hook Bolt Deadlock, Throw 1-3/16" Calibre® storefront hardware is not unique, or exotic. This storefront hardware is the “meat and potatoes” that has become the mainstay for the storefront industry. The people of Calibre® offer you 38 years of experience that will provide you with the best possible quality and help you to better control your material costs. Bolts made of 5-ply laminated steel with a hardened roller pin inserted in a case hardened center ply for maximum security Locks use standard 1-5/32" Mortise Key or Thumbturn Cylinders with AR MS-Type cam Precision die cast A380 aluminum alloy is used for aluminum hardware castings Quality, homogenized steel used for all steel stampings for all locks, and security hardware product All machining is performed with state of the art equipment for precision and uniformity throughout all phases of production All painted surfaces are either baked enamel, or powder coating (depending on the product) for durability and long lasting finishes