• Made in America
  • ISO 9001-2015 Certified


  • Solid, one-piece insert construction provides a high degree of pull-out strength
  • Keys supply a positive mechanical lock against rotation
  • Easy Installation and removal
  • Installed with standard drills and taps
  • No pre-winder tool required No tang to break-off
  • May be used in many types of material

MS/NAS Style inserts are produced to the following standards:

  • MS51830
  • NAS1395
  • NA0149
  • MS51831
  • NA0146
  • NA0150
  • MS51832
  • NA0147
  • NA0151
  • NAS1394
  • NA0148

Miniature, Lightweight, Heavy Duty, and Extra Heavy Duty types with Non-locking and Self-locking internal threads

Full range of Inch and Metric sizes in coarse or fine pitch threads

Inserts for specific uses are available in floating, blind end, solid, and cast-in configurations

Industrial Style inserts can be purchased in bulk quantities or kits

General Information

Key-Type Threaded Inserts are used to quickly repair stripped, damaged or worn out threads with new stronger threads or for use in original equipment. inserts are easy to install and easy to remove. Special tools are required. The Keys are driven down into the threads of the surrounding base material, locking the insert in place.


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