20402124 - Tweco 2040-2124 Binder Screw and Post Kit for Classic No. 4, 5, & 6 MIG Guns

Restore Your MIG Gun's Structural Stability

A loose or damaged handle on a MIG gun isn't just an annoyance; it's a productivity killer and a potential safety hazard. The Tweco® Binder Screw and Post (Part No. 2040-2124) is the essential replacement part needed to secure the handle assembly of your classic air-cooled MIG guns. Designed specifically for the Tweco No. 4, No. 5, and No. 6 models, this kit allows you to quickly repair your equipment and get back to welding. Over time, vibration and thermal cycling can cause original screws to loosen or strip. Replacing them with this genuine Tweco part ensures your gun feels solid in your hand, providing the control necessary for precision welds.

Technical Specifications and Compatibility

This replacement binder screw and post is built to meet the rigorous demands of industrial welding. It is fully compatible with air-cooled MIG guns rated for 200 A, 300 A, 400 A, and up to 450 A. This wide amperage compatibility ensures that whether you are using a No. 4 for general fabrication or a No. 6 for heavy-duty structural work, this single part number covers your maintenance needs. Additionally, it supports the full range of wire sizes typically used with these guns, from 0.023 inches for light gauge work up to 1/16 inches (0.062") for high-deposition applications.

Easy Installation and Maintenance

Maintenance downtime is costly, which is why the Tweco 2040-2124 is designed for straightforward installation. The kit includes both the threaded screw and the mating post, allowing for a complete replacement of the binding mechanism. Regular inspection of your MIG gun's handle screws is recommended as part of a preventative maintenance schedule. If you notice any play or wobble in the handle, tightening or replacing the binder screw can prevent further damage to the gun's internal connections and cable liner.

The Tweco Standard of Quality

When you buy Tweco, you are buying into a legacy of welding excellence. The Classic Series MIG guns are renowned for their durability, and their replacement parts are manufactured to the same high standards. Using OEM parts ensures that the threading, material hardness, and dimensions are exactly what the manufacturer intended. This prevents issues often seen with generic parts, such as cross-threading or premature failure. Keep your shop stocked with essential spares like the 2040-2124 to minimize downtime and maintain the professional quality of your welding operations.