Tangless Wire Thread Insert of Fasteners
The Screw Locking Tangless Insert is achieved by the action of a polygonal grip coil in the insert that exerts radial pressure on the male thread, with each grip coil consisting of a number of tangential locking chords that 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, thereby exerting radial pressure and prevailing locking torque on the male thread.
Our Key-Locking Screw Thread Inserts have all of the advantages of a free running type plus the additional benefit of prevailing locking torque, which makes them a valuable and reliable choice for use in applications subject to cyclic vibration or impact.
On removal of the male thread, the locking coil relaxes to its original form, allowing for repeated assembly whilst retaining a measurable level of prevailing torque.
Size Range:
Metric sizes: M3 to M12 (Other sizes on request)
Inch Unified: Sizes on request
BSF, BSW and pipe thread sizes on request.
Material:
304 Stainless Steel
316 Stainless Steel
Inconel X-750
Nitronic 60/ Nimonic 90
Bronze/ Aluminum
Finishes & Coating:
Dye Coating(Green, Red, Blue. Etc.)
Cadmium Plating
Silver Plating
Dry Film Lubricants