Manufactured to the highest quality since 1938, Helicoil screw thread inserts have been stringently tested for the demands of manufacturing, but especially the aerospace and defence industries.

Helicoil screw thread inserts provide you with a proven track record of superior performance,reliability and integrity.

The Helicoil products we offer include a wide range of globally referenced aerospace and defence wire thread inserts specified and used by major manufacturers around the world.

Helicoil Accreditations

 A-A-59158 AS1229-3083 AS1394-3097
 AS9100 ASME B18.29.1 FED-STD-H28
 ISO9001 NASM8846 NASM122076-122275
 NASM124651-124850 NASM21209 NASM33537
 MA1565 MA1567 MA3279,3280,3281
 SBAC TS16949 

Helicoil Inserts

Helicoil inserts are precision formed screw thread coils worked into a diamond shape. The resultant surface finish is a mirror-like 8-16 micro inches. This wire is then wound into a spiral coil which when installed into Helicoil tapped holes, provides permanent conventional 60º internal screw threads.

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Helicoil Thread Repair Kits & Master Sets

Helicoil inserts are available in thread repair kits and sets for repairing tapped holes which have been stripped or damaged due to wear, corrosion and overtorque.
They are available in inch, metric, spark plug and pipe thread series. All kits have a quantity of inserts, the proper size drill, high speed steel Helicoil tap and an installation tool.
The Professional Kits* (shown in bold type) also includes a tang removal tool and quantities of three lengths of inserts.

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