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Two copper welding nozzles with threaded recessed tips .625 in bore diameter

Tweco

Tweco 12401854 Nozzle Threaded Recess .625 in PK2

SKU CH-3HC6-GC4YV

Threaded copper MIG nozzle with a 5/8 in bore, recessed tip and 350 A medium-duty rating, sold as a pair

  • TypeWelding Parts & Supplies
  • Threaded recess simplifies installation
  • Copper construction handles up to 350 A
  • .625 in bore fits Velocity2 and Classic No. series
  • Self-insulated design supports medium-duty MIG welding
  • Two-pack keeps a spare nozzle on hand

Tweco 12401854 Nozzle Threaded Recess .625 in PK2

This copper nozzle fits Tweco Velocity2, Classic No. Series, Spray Master and Supra XT MIG guns. It uses a threaded connection with a recessed tip relationship for consistent gas coverage. The self-insulated design simplifies installation on compatible torches. It is sold as a two-pack for workshop convenience.

Bore diameter 5/8 in handles up to 350 A medium duty

The .625 inch bore supports MIG welding from 0 to 450 A with a 350 A medium-duty rating. It performs well on standard fabrication and repair work within that range. Heavy continuous spray-transfer jobs above the rated amperage will shorten tip and nozzle life. Users needing higher sustained output should select a heavy-duty alternative.

Threaded connection limits compatibility to listed

Only guns accepting the specified threaded recess geometry can use this nozzle. Adapters or other manufacturers' torches are not supported by the design. The copper construction resists spatter but requires correct tip seating to maintain gas seal integrity. Verify your gun series matches Velocity2, Classic, Spray Master or Supra XT before fitting.

Highlights

  • Threaded recess simplifies installation
  • Copper construction handles up to 350 A
  • .625 in bore fits Velocity2 and Classic No. series
  • Self-insulated design supports medium-duty MIG welding
  • Two-pack keeps a spare nozzle on hand

Specifications

BrandTWECO
TypeWelding Parts & Supplies

Questions about this item

Will the 0.625 in bore nozzle fit the Velocity2 gun I already use?

Yes — the nozzle is listed as compatible with the Velocity2 series, the Classic No. series, Spray Master and Supra XT guns.

How can I confirm the nozzle is seated correctly after installation?

Thread it onto the gun until the recess sits flush with the contact tip; the copper body should feel firm with no wobble.

Does the pack of two include contact tips or do I buy them separately?

The pack contains only the two threaded recess nozzles; VTM or VTMA contact tips are sold separately.

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