Extra-heavy-duty Wilton Brute Force™ C-clamp stands up to the rigorous demands of heavy industrial and construction applications. The powder-coated forged steel square-throat frame and black oxide-coated steel spindle have excellent corrosion resistance and provide outstanding clamping pressure. The square spindle head stands up to heavy wrench tightening.• Throat depth 2-1/4 • Load capacity 10,000 lb. C-Clamp, 4 , Steel, Extra HD, 10, 000 lb. This product contains a chemical that is regulated under California Proposition 65. Warning This product contains a chemical known to the State of California to cause cancer. Warning This product contains a chemical known to the State of California to cause birth defects or other reproductive harm.