HARGRAVE #40 Extra Heavy Duty Forged 12 bridge Clamp 40000lb CONSTRUCTION CLAMP. In great condition, military surplus tool, this clamp is real deal it weighs around 42lbs , Condition is Used.The item "HARGRAVE #40 Extra Heavy Duty Forged 12 bridge Clamp 40000lb CONSTRUCTION CLAMP" is in sale since Friday, February 21, 2020. This item is in the category "Home & Garden\Tools & Workshop Equipment\Hand Tools\Clamps & Vises". The seller is "patriotpicker" and is located in Quincy, Florida. This item can be shipped worldwide.