Toggle clamps from BESSEY are ideal for firmly holding down a workpiece and keep it stationary. These self-adjusting toggle clamps can maintain clamping force while self-adjusting to variations in the workpiece height (from 20 to 60 mm). They feature an integrated pressure screw which allows clamping force adjustment from 25 to 550 lb. BESSEY STC-HH20 clamps have a load-holding capacity of 700 lb (standard is 450 lb) and are equipped with a heat-resistant handle for operator comfort & safety They have a nickel-plated coating for protection against corrosion & a longer life.