Q401-8-62 - Tweco Q401-8-62 Heavy Duty MIG Nozzle 5/8 Bore 1/8 Stickout (2-Pack)

Tweco Q401-8-62 Heavy Duty MIG Nozzle (2-Pack)

The Tweco Q401-8-62 is a premium heavy-duty gas nozzle designed for professional MIG welding applications. Engineered by ESAB under the renowned Tweco brand, this nozzle is built to withstand the rigors of high-amperage industrial welding. It features a 5/8-inch bore orifice, which provides optimal shielding gas coverage for a wide range of welding parameters, ensuring porosity-free welds and stable arc characteristics.

This specific model is distinguished by its 1/8-inch contact tip stickout configuration. Unlike recessed nozzles, the stickout design allows the contact tip to protrude slightly beyond the nozzle edge. This is particularly advantageous for short-circuit MIG welding or when accessing tight fillet welds where nozzle clearance is an issue. The improved visibility of the wire stick-out helps operators maintain precise electrode placement.

Constructed from high-grade copper alloy, the Q401-8-62 offers exceptional thermal conductivity, effectively drawing heat away from the front end of the gun to prevent spatter adhesion and premature failure. The slip-on design utilizes a friction fit with the gas diffuser/insulator, allowing for rapid changeovers without the risk of cross-threading or seizing. It is fully compatible with Tweco Q-Series, Spray Master, and Eliminator series MIG guns.

Key Specifications:

• Part Number: Q401-8-62


• Bore Size: 5/8" (15.9 mm)


• Tip Relationship: 1/8" (3.2 mm) Stickout


• Material: Copper Alloy


• Compatibility: Tweco Q-Guns, Spray Master