Tangless Screw Locking Coil Threaded Insert
Helisert tangless threaded inserts/Screw Locking Tangless Insert provide permanent, wear-resistant Tangless Screw-Locking Inserts that completely eliminate the need for tang break-off and retrieval.
One, or more, of the coils in the insert have a series of straight segments. Upon entry of the bolt these straight segments are flexed outwardly, creating pressure on the bolt. This pressure is applied between the flanks of the bolt thread so that contact area is maximized and unit pressure is minimized.
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