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Tangless Wire Thread Insert of Fasteners
Tangless Wire Thread Insert of Fasteners
Tangless Wire Thread Insert of Fasteners

Tangless Wire Thread Insert of Fasteners

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Incoterm:FOB,CFR,CIF,EXW,CPT,CIP,DDP,DDU,Express Delivery
Transportation:Ocean,Land,Air,Express,Express
Port:Dalian,Shanghai,Guangzhou
Product Attributes

BrandNeutual / Helisert

Packaging & Delivery
Selling Units : Others
Package Type : Neutral Packing/ Customized
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Product Description

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.

Tangless Helicoil Insert

Material:  
304 Stainless Steel
316 Stainless Steel
Inconel X-750 
Nitronic 60/ Nimonic 90
Bronze/ Aluminum

Tangless Threaded Insert


Finishes & Coating:
Dye Coating(Green, Red, Blue. Etc.)
Cadmium Plating 
Silver Plating
Dry Film Lubricants


Company Overview
Shenyang Liming Mechanical Component(Helisert Inserts), is the flagship company in China for thread inserts. We supplied to Chinese military and aerospace since 1998 and our founder start to analyze thread inserts since 1965, at Shenyang Liming Group.

After more than 25 years’ developing, our HELISERT, including wire thread insert, keylocking Insert, self-tapping insert and other type of thread insert, has already achieved all-automatic production and keep supplying to Chinese military, aerospace, automobile and exporting.

Prompt availability of products to customers worldwide is ensured by an efficient international freight service and a good scale of stocking. We already have management system in AS9100, ISO9001 and IATF16949.
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