Size 10" Weight 9.25 Max. Opening 10" Min. Opening 0" Depth 2-3/4" Screw Dia. 3/4" Test Load 13,750 Lbs. Weight Per Box 9-1/4 Lbs. Recommended for heavy industrial and construction work demanding extra strength. Drop forged from selected steel and accurately heat-treated. Steel swivels are securely attached to hardened steel screws. Conforms to Federal Specification GGG-C-406D, Type 1, Class B, medium service.