About Screw Locking Inserts, Recoil Inserts
Screw Locking (or prevailing torque) Inserts are of particular value in applications subject to the effects of cyclic vibration or impact. In addition to the benefits afforded by free running inserts, Screw Locking Inserts offer the additional security of prevailing locking torque.
This is achieved by the action of one or more polygonal grip coils positioned within the inserts length, which exerts radial pressure on the male thread. Each grip coil on PowerCoil Screw Locking Inserts consists of a number of tangential locking chords which protrude inside the minor diameter of the normal free running coils. As the male thread passes through these grip coils, the locking flats are displaced, exerting radial pressure or prevailing torque on the male thread.
On removal of the male thread, the locking coils in Screw Locking Inserts relax to their original form, permitting repeated assembly whilst retaining a measurable level of prevailing torque.
Screw Locking Inserts are fully compatible with others such as Emhart Helicoil, Alcoa Recoil, Voelkel V-Coil, VCoil, V Coil, Armstrong Armacoil, Filtec, Kato Coilthread, Timesert, WTI
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Contact us for more information on Screw Locking Inserts or for catalog.