4213B - Bernard 4213B Cone Nut End Fitting for Q-Gun Series

Keep Your Bernard Q-Gun Running Smoothly

When you are in the middle of a fabrication job, the last thing you need is a loose connection in your MIG gun. The Bernard 4213B End Fitting, also known as a cone nut, is the small but mighty part that keeps your Q-Gun's power pin locked in place. Designed for the popular Q200 and Q300 series guns, this replacement part is essential for welders who rely on their equipment to perform day in and day out. If you've noticed play in your gun's back end or are rebuilding an older torch, this fresh nut is exactly what you need.

Over time, threads can strip or become damaged during routine liner changes and maintenance. A worn-out cone nut doesn't just feel loose; it can cause poor conductivity and heat buildup that makes welding uncomfortable and inconsistent. Swapping in a new 4213B is a quick fix that restores that solid, factory-fresh feel to your handle. It’s made from durable brass to resist corrosion and handle the heat of the shop floor.

Don't settle for "good enough" when it comes to your tools. Using genuine Bernard parts like the 4213B ensures that your equipment fits together exactly as intended, preventing wire feed issues and downtime. Whether you are running a Q200 or Q300, keep a spare cone nut in your toolbox so a stripped thread never shuts down your production line. Get back to laying perfect beads with confidence in your gear.