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The BESSEY SQ-12 is a heavy-duty F-style welding clamp rated for 2,660 pounds of clamping force. It is designed for metal fabrication and welding applications where a secure, stable hold is critical during tack welding, fit-up, and assembly. The sliding arm is forged from tempered steel, extending service life under repeated use and heavy loads. The high-carbon Acme threaded screw is spatter resistant and tempered to deliver greater load capacity and consistent performance over time. Licensed welders, metal fabricators, and ironworkers are the primary installers and users of this clamp.
The SQ-12 is suited for professional welding shops and fabrication environments where F-style clamps are required to hold workpieces firmly in position. Its 12-inch jaw opening and 5.5-inch throat depth accommodate a wide range of stock thicknesses and joint configurations. The heavy-duty pad helps distribute clamping pressure evenly across the workpiece surface, reducing the risk of surface damage or slippage during fit-up and tack welding operations.
Designed as a standard F-style welding clamp for use in professional metal fabrication, welding, and ironwork applications requiring high clamping force and spatter resistance.
The SQ-12 is operated by hand and requires no power tools or fasteners for setup. Position the clamp on the workpiece before applying clamping force by tightening the Acme threaded screw. Ensure the workpiece and clamp surfaces are free of debris before applying load to achieve consistent clamping pressure. Inspect the sliding arm and screw threads periodically for wear, especially in high-volume fabrication environments.
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