{"product_id":"bessey-sq-4-f-style-welding-clamp-1330-lb-heavy-duty","title":"Bessey SQ-4 F-style Welding Clamp 1330 Lb Heavy Duty","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BESSEY SQ-4 is an F-style welding clamp designed for heavy-duty fabrication and metalworking applications. It features a forged sliding arm machined from tempered steel, delivering long service life under repeated clamping loads. The high-carbon Acme threaded screw is spatter resistant and tempered for greater load capacity. With a rated clamping force of 1330 pounds and a jaw opening of 6 inches with a throat depth of 4.75 inches, this clamp is built for professional welders and fabricators who need consistent, reliable holding force on steel weldments.\u003c\/p\u003e\u003cp\u003eThis clamp is suited for tack welding, fixture building, and general steel fabrication in both shop and field environments. The heavy-duty pad protects workpiece surfaces while maintaining secure grip during MIG, TIG, or stick welding operations. It is a practical choice for ironworkers, pipe fitters, and professional welders who require a dependable F-style clamp that withstands weld spatter and high-cycle use.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eForged sliding arm made from tempered steel for extended service life\u003c\/li\u003e\n\u003cli\u003eHigh-carbon Acme threaded screw is spatter resistant and tempered for higher load capacity\u003c\/li\u003e\n\u003cli\u003e1330 lb clamping force rated for heavy-duty holding applications\u003c\/li\u003e\n\u003cli\u003e6-inch jaw opening accommodates a wide range of workpiece thicknesses\u003c\/li\u003e\n\u003cli\u003e4.75-inch throat depth provides clearance for typical fabrication setups\u003c\/li\u003e\n\u003cli\u003eHeavy-duty pad protects workpiece surfaces during clamping\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard F-style welding clamp suitable for general steel fabrication, fixture work, and weldment assembly applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003ePosition the clamp on the workpiece before initiating any weld to avoid contact with live electrical current from welding equipment. Keep the threaded screw and sliding arm clear of direct spatter where possible to preserve thread engagement over time. Inspect the sliding arm and screw threads periodically for wear or spatter buildup and clean as needed to maintain full clamping force. No special tools are required for operation, but appropriate PPE including welding gloves should be worn when handling clamps near active weld zones.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClamping Force\u003c\/strong\u003e: 1330 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJaw Opening\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThroat Depth\u003c\/strong\u003e: 4.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Type\u003c\/strong\u003e: High-carbon Acme thread, spatter resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSliding Arm\u003c\/strong\u003e: Forged tempered steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: BESSEY\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SQ-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BESSEY","offers":[{"title":"Default Title","offer_id":51345003675954,"sku":"SQ-4","price":753.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310468391.jpg?v=1782047822","url":"https:\/\/voomisupply.com\/products\/bessey-sq-4-f-style-welding-clamp-1330-lb-heavy-duty","provider":"Voomi Supply","version":"1.0","type":"link"}