20402046 - Tweco 8-32 x 3/16 Socket Head Set Screw (10-Pack)

Keep Your MIG Gun Tight and Right

There is nothing more frustrating than a MIG gun that feels loose in your hand or a conductor tube that wobbles while you are trying to lay down a perfect bead. Often, the culprit is a tiny, stripped, or missing set screw. The Tweco 2040-2046 Set Screw kit is your solution to these common torch ailments. This package contains ten genuine Tweco 8-32 x 3/16 inch socket head set screws, giving you plenty of spares for your toolbox or workbench. When you are in the middle of a job, you don't have time to hunt for a screw that fell on the shop floor; with this pack, you can grab a fresh one and get back to welding immediately.

These set screws are the exact replacements for the ones found in many Tweco MIG guns, including the legendary Spray Master and Classic lines. They are typically used to secure the conductor tube (gooseneck) into the gun block or to lock the cable assembly in place within the handle. A loose connection here isn't just annoying; it creates electrical resistance. Resistance creates heat, and heat destroys torches. If your handle is getting uncomfortably hot, check your connections—you might just need to tighten or replace a set screw to restore proper conductivity and save your gun from melting down.

The socket head design is superior to flat-head screws because it allows you to really crank down on the fastener using a hex key (Allen wrench) without the driver slipping out and gouging your hand or the gun handle. This ensures a rock-solid mechanical connection that can withstand the twisting and pulling that happens every day in a welding booth. The 3/16-inch length is designed to sit flush or below the surface, ensuring it doesn't snag on your gloves or other equipment.

Don't risk damaging the threads on your expensive MIG gun by trying to force in a hardware store screw that "looks close enough." Thread pitch matters, and using the wrong screw can strip out the brass block of your gun, turning a ten-cent repair into a hundred-dollar replacement. Stick with genuine Tweco parts to ensure the threads match perfectly every time. Whether you are doing a full tear-down for maintenance or just a quick field repair, these set screws are an absolute essential for every welder's kit.