KATO Coil Thread Tangless Screw Thread Inserts

KATO Coil Thread Tangless Screw Thread Inserts

KATO CoilThread inserts are based on a continuous helically-coiled open pitch design using a diamond shaped wire. The diamond-shaped wire design allows the inserts to engage the threads in the parent material and at the same time accept a male fastener. Thus, they do not need a thick wall structure to support the internal and external threads. For the same nominal thread size, the parent material thickness requirement is less when compared with thin wall or solid inserts.

Product Details

KATO CoilThread inserts are based on a continuous helically-coiled open pitch design using a diamond shaped wire. The diamond-shaped wire design allows the inserts to engage the threads in the parent material and at the same time accept a male fastener. Thus, they do not need a thick wall structure to support the internal and external threads. For the same nominal thread size, the parent material thickness requirement is less when compared with thin wall or solid inserts.

The resilient design characteristics of Coilthread inserts allow each coil to adjust independently for maximum surface contact with the parent material. As a result, loads are distributed more evenly. Stress and fatigue concentrations are reduced to maximize thread strength, thus, increasing the reliability and life of the fastening system.

CoilThread inserts are designed to be installed in reduced-sized bosses or flanges, thus saving space and weight while providing high strength. A boss radius equal to the nominal bolt diameter is usually sufficient.

Recoil has a huge range of inserts available ex-stock for every thread form

including METRIC, UNC, UNF, BSC, BSW, BSP, BSF, BA, and NPT.

There are three basic types of Recoil inserts available:

Standard inserts which form a strong female thread

Locking inserts with an additional locking function

Tangless* inserts without an installation tang


Welcome to buy the kato coil thread tangless screw thread inserts in stock from our factory. As one of the leading threaded inserts manufacturers and suppliers in China, we can assure you of the high quality of our products made in China.
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