The Bessey SG HD Heavy Duty Screw Clamp with 400mm clamp capacity is designed for larger workpieces requiring substantial reach and exceptional clamping force. Delivering up to 12,000N of clamping pressure, this variant excels in steel and boiler construction, shipbuilding, and heavy timber work where secure, reliable clamping of substantial components is critical. This 400mm model provides excellent versatility with its 140mm throat depth, accommodating a wide range of workpiece configurations. The robust all-steel construction and tempered components ensure consistent, dependable performance in the most demanding professional environments, from automotive engineering to laminated beam construction. Features and Benefits: • Maximum torsion resistance through single-piece tempered fixed bracket and pressure plate construction • Replaceable heat-resistant pressure plate tilts up to 35° for effective clamping on irregular or angled surfaces • Tempered spindle construction ensures exceptional wear resistance and extended operational life • Heavy-duty tommy bar with ergonomic rounded ends and hexagonal bolt provides powerful, controlled clamping action Specifications: Clamp Capacity (Length): 400mm Throat Depth: 140mm Clamping Force: Up to 12,000N Tightening Torque: 40Nm Rail: 34 x 13mm Weight: 3.17kg