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"GRIPP" wire inserts have been the preferred solution for strengthening threads in low-strength metal due to high-wearing tensile strength, low thread friction, tight tolerances and a high surface quality as well as corrosion and heat resistance. These coiled wire inserts provide a hard accurate lasting thread of high mechanical efficiency.

"GRIPP" inserts are lighter, cheaper and occupy less space than a solid bushing, by locking itself permanently into position in a tapped hole.

"GRIPP" wire inserts are manufactured for every thread form including UNC, UNF, BSW, BSF, BSP, BA and ISO Metric threads.

Screw Thread Inserts are manufactured from class 304 (18-8), 316 stainless steel as well as Inconel materials.

Helical Thread Inserts (Lock Type)

Apart from having all the above merits these inserts posses a polygonal central coil which exerts a prevailing and resilient torque on the bolt preventing the bolt/screw from loosening under vibrations and impacts.

The bolt/screw can be fitted and removed several times without any considerable loss of torque.

Screw-lock inserts when fitted into nuts provide what is probably the best kind of self-locking nuts, known as nuts.

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