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TREGASKISS 404-20-25 slip-on retaining head, single taper, TOUGH LOCK series

TREGASKISS

TREGASKISS 404-20-25 Retaining Head Slip-On Single Taper TOUGH LOCK

SKU CH-K4BC-G3Q81

Slip-on retaining head fits Lincoln, Tweco and Magnum MIG guns with a single-taper TOUGH LOCK connection

  • TypeTools
  • Slip-on fitting speeds gun changes on MIG torches
  • Single-taper profile aligns gas diffuser without tools
  • Heavy-duty construction withstands high-amperage MIG welding (GMAW)
  • Compatible with Magnum 300, Magnum 400, Spray Master 350 and Spray Master 450 models
  • 9/16 in.-18 thread matches Tweco #3 and Tweco #4 guns

Retaining Head for MIG Welding Guns

The TREGASKISS 404-20-25 retaining head is a slip-on component designed for MIG welding (GMAW) guns. It suits professional welders and maintenance teams who need a heavy-duty replacement part for compatible torch assemblies.

Slip-On Fit with TOUGH LOCK Diffusers

This head connects via a 9/16 in.-18 slip-on thread to TOUGH LOCK gas diffusers. It fits Magnum 300, Magnum 400, Spray Master 350, Spray Master 450, Tweco #3, Tweco #4 and WeldSkill 400 guns, freeing the operator from searching for brand-specific alternatives.

Heavy-Duty Rating for Continuous Operation

Rated for heavy duty, the retaining head withstands the heat and spatter of sustained MIG welding cycles. It maintains secure diffuser alignment during long production runs rather than only short tack welds.

Highlights

  • Slip-on fitting speeds gun changes on MIG torches
  • Single-taper profile aligns gas diffuser without tools
  • Heavy-duty construction withstands high-amperage MIG welding (GMAW)
  • Compatible with Magnum 300, Magnum 400, Spray Master 350 and Spray Master 450 models
  • 9/16 in.-18 thread matches Tweco #3 and Tweco #4 guns

Specifications

BrandTREGASKISS
TypeTools

Questions about this item

How long does the 9/16 in.-18 slip-on thread last under continuous MIG welding?

The heavy-duty rated 9/16 in.-18 slip-on connection is built for sustained MIG welding on Magnum 300, 400 and Spray Master 350, 450 guns.

Does the retaining head get too hot during all-day spray-transfer runs?

The TOUGH LOCK single-taper design dissipates heat across the diffuser face, keeping temperatures stable during extended heavy-duty cycles.

Which MIG gun models must I already own for this 404-20-25 head to fit?

It fits Lincoln Magnum 300, Magnum 400, Spray Master 350, Spray Master 450, Tweco #3, Tweco #4 and WeldSkill 400 guns.

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