POWERTEC 20306 Latch-Action Toggle Clamp, 2000 lbs Capacity, 40341 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 2000 lb holding capacity; Complete with adjustable u bolt Mechanism allows maximum clearance