Size 10" Weight 10.88 Max. Opening 10" Min. Opening 0" Depth 5-3/8" Screw Dia. 7/8" Test Load 8,000 Lbs. Weight Per Box 10-1/2 Lbs. Conforms to Federal Specification GGG-C-406D, Type 1, Class A, light service, deep throat. Threads on our screws are Acme roll-threaded for maximum strength and clamping force.