POWERTEC 20307 Latch-Action Toggle Clamp, 700 lbs Capacity, 431 Ideal for use on doors, machinery, automobiles, jig assemblies and other medium to heavy-duty job applications Cold-rolled carbon Steel with Zinc plated coating for corrosion resistance Streamlined latch-mechanism features strength and adjustability 700 lb holding capacity; Complete with adjustable u bolt Mechanism allows maximum clearance