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Helicoil

Helicoil 5408-14 M14x1.25 Thread Repair Kit 18 Pcs 304 SS

SKU CH-MMM1-AMC6K

M14x1.25 thread repair kit with 18 stainless-steel inserts and installation tools

  • M14x1.25 threads repaired with 304 stainless steel inserts
  • 18-piece kit covers short normal and long reach lengths
  • Piloted high-speed steel tap ensures accurate thread cutting
  • Installation tool included for quick Sav-a-Thread fitting
  • 5408-14 kit restores damaged metal threads to original strength

M14x1.25 Thread Repair Kit

The Helicoil 5408-14 kit provides 18 stainless steel inserts to restore damaged M14x1.25 threads in metal components. It suits mechanics and DIYers who need a reliable Sav-a-Thread solution for stripped or worn fasteners.

Simple Installation With Included Tools

A high-speed steel piloted tap and installation tool are supplied so you can cut new threads and fit inserts in one workflow. The main risk is cross-threading the tap if the hole is not started squarely; use steady pressure and cutting fluid to avoid this.

Verify Thread Pitch And Material First

Confirm the existing hole uses a 1.25 mm pitch and that the base metal is compatible with stainless steel inserts. The kit only addresses M14x1.25 threads; other diameters or pitches require a different set.

Highlights

  • M14x1.25 threads repaired with 304 stainless steel inserts
  • 18-piece kit covers short normal and long reach lengths
  • Piloted high-speed steel tap ensures accurate thread cutting
  • Installation tool included for quick Sav-a-Thread fitting
  • 5408-14 kit restores damaged metal threads to original strength

Specifications

BrandHELICOIL

Questions about this item

How do I verify the M14x1.25 inserts are seated correctly after installation?

The high-speed steel piloted tap aligns the hole, and the installation tool drives each insert to the proper depth; when the insert sits flush with the surface and the bolt threads engage smoothly through all 18 inserts, the repair is sound.

What comes in the 18-piece kit and what must I supply separately?

The box contains 18 stainless-steel inserts in short, normal and long reaches, one piloted tap and one installation tool; you will need a suitable drill bit for the tap drill size and a wrench or socket to turn the tap.

Which reach length — short, normal or long — should I select for my M14x1.25 repair?

Choose short for thin-walled sections, normal for standard-depth holes and long when extra thread engagement is required; the kit includes all three so you can match the reach to the specific component thickness.

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