171374 - Tweco 171374 Replacement Insulator Screw

Keep Your Tweco Gun Running Smoothly

There is nothing more frustrating than a floppy nozzle or a rattling front end on your MIG gun when you are trying to lay down a perfect bead. The Tweco 171374 Insulator Screw might look like a small piece of hardware, but it plays a huge role in keeping your torch solid and reliable. This is the screw that locks your insulator in place, making sure that the business end of your gun stays tight and electrically safe. If you've lost this screw during a cleaning session or if the old one has stripped out after years of abuse, this genuine Tweco replacement is exactly what you need to get back to work.

Why Use Genuine Tweco Parts?

It might be tempting to dig through a bin of random bolts to find something that fits, but welding torches live in a brutal environment. The heat at the nozzle is intense, and using a standard hardware store screw can lead to big headaches later. Non-OEM screws might expand differently when hot, seizing up inside your gun or loosening right when you need them to hold. This Tweco screw is made to handle the heat and vibration of daily welding, ensuring your insulator doesn't slip and cause an arc-out inside your nozzle.

Maintenance Matters

Regular maintenance of your MIG gun is key to consistent wire feeding and gas coverage. When you are changing your liner or cleaning out spatter, take a second to check your insulator screw. If it's missing or stripped, replace it immediately. Keeping a few of these 171374 screws in your shop's spare parts bin is a smart move that can save you downtime. Don't let a ten-cent problem cause a hundred-dollar failure; stick with genuine Tweco parts and keep your gear in top shape.