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Home>Helical Thread Inserts
Helical Thread Inserts
Helical Thread Insert

Helical Inserts are made from cold rolled 18-8 stainless steel. The wire has a diamond cross section which is wound to the shape of a spring thread. The insert, which is larger in diameter than the tapped hole is compressed during installation then allowed to spring back, permanently anchoring the insert in the tapped hole.
  Coil tension securely holds the insert in place without undue tension on the surrounding material.

Quickly and easily repair stripped or damaged threads, or create stronger original threads in die castings or plastics with our Helical Screw Thread Inserts.  The inserts are vibration and impact resistant so won't strip or seize.  Made from corrosion resistant stainless steel, they offer a wide temperature tolerance.


Helical Inserts are often known by the brand names Helicoil or Recoil Screw Thread Inserts.  Our Precision Thread Helical Inserts are interchangeable with other brands of inserts and tooling.  If you are currently using Helicoil, Recoil, or Mil Spec part numbers for your inserts, rest assured you'll enjoy an easy and accurate transition to our Precision Thread Helical Inserts.

Our Helical Inserts meet or exceed most applicable specifications, including: MS 122076 series, 124651 series, 21208, 21209, 33537, Mil-1-8846, and Mil-F-5577.

Available Options:
  • Style - Free Running, Locking
  • Length - 1xD, 1.5xD, 2xD, 2.5xD, 3xD
  • Material - 18-8 & 316 SST, Inconel X750, Phosphor-Bronze, Nitronic 60
  • Coatings - Dry Film, Cadmium, Silver Plating
Please click on one of the following Thread Types for more information...
American
UNC, UNF, Giant 8 Pitch, Left Hand
Metric
Coarse, Fine, Giant & Left Hand
Other
BSP, BSW, BSF, NPT, & Spark Plug