Thread Inserts Permanent internal thread for low-strength materials

High-Strength Internal & External Threaded Inserts

MaterialAlloy steel / stainless steelSurface treatmentZinc-plated / passivated

Product description

Compiled from the existing technical description of this product on this site

The precision inner-outer thread adapter is made of high-quality alloy steel or stainless steel, manufactured by precision deep-hole machining and lapped threads, with high coaxiality and precise fit between internal and external threads. It provides a permanent, high-strength, wear-resistant internal thread for low-strength materials, effectively preventing thread stripping, and is suitable for locations requiring long-term repeated assembly and disassembly.

Technical Features
Deep-hole precision machining for high coaxiality of internal and external threadsFine-finished threads for smooth fit and stable accuracyProvides a permanent high-strength internal thread for low-strength materialsResists thread stripping and wear, supporting long-term repeated assemblyAlloy steel / stainless steel options, dimensions manufactured to drawing
Applications
Aluminium and magnesium alloy die-castingsMolds & FixturesConstruction machinery componentsPrecision instrument structures

Specifications

The parameters listed on this page are subject to final inspection and the applicable standards; items not listed follow the customer drawing or the order agreement and are not committed by default.

Material Alloy steel / stainless steel
Surface treatment Zinc-plated / passivated (optional)
Standard Per customer drawing / corporate standard; threads GB/T 196, GB/T 197 (ISO 965-1) 6g
Typical application Permanent internal thread for low-strength materials

Spec lookup

Look up your operating conditions directly across the 9 models in this series — front-end filtering only, no redirects, no URL changes

Filter results are based on the specification fields published on each model page and are for preliminary screening only; the final selection must be confirmed in light of the actual load, plate thickness and assembly process.

Drawings and documentation

Official catalogues and manuals are available for direct download; custom drawings are handled per project

PDF

Wire thread insert product manual

Specifications, installation and drilling dimensions 6.0 MB

Download
PDF

Thread insert product manual

Inner-outer thread insert series 6.3 MB

Download

Manufacturing process

The usual process route for this product family; actual operations follow the drawing and order requirements.

  • Profile / wire formingCross-section and profile forming
  • Wound or turnedInternal and external thread machining
  • Heat treatmentReinforcement with wire thread inserts and metal inserts
  • Surface treatmentZinc-plated / passivated / anodised
  • 100% go/no-go gauge inspectionGo/no-go thread gauging and installation torque verification

Capacity & delivery

Taken from the company's published capacity and certification information; no unverified claims are included.

6.5100M pcs/monthCombined monthly capacity of the Shenzhen and Xiangyang (Hubei) dual bases
As fast as 1-day prototypingFast prototyping channel after drawing or sample confirmation
26patentsPatents for fastening structures and assembly processes
3system certificationsIATF 16949 / ISO 9001 / ISO 14001

FAQ

Material, standards, surface treatment and installation points for this model; the data comes from the specification table on this page and from the national standards cited in the answers.

Q1What material does the high-precision inner-outer threaded bushing use? What strength level does it reach?

Specified in the specification table on this page: material alloy steel / stainless steel. A material certificate and mechanical property test report can be provided with the goods; batch acceptance is carried out in accordance with the above specifications.

Q2What are the main features of the high-precision inner-outer threaded bushing?

Features listed in the product description on this page: precision deep-hole machining with high coaxiality between internal and external threads; lapped threads for smooth fit and stable precision; permanent high-strength internal threads for low-strength materials; anti-stripping and wear-resistant, supporting long-term repeated assembly and disassembly.

Q3To which standard is the high-precision inner-outer threaded bushing manufactured and inspected?

Standards specified in the specification table on this page: per customer drawing / corporate standard; threads GB/T 196, GB/T 197 (ISO 965-1) 6g. A dimensional inspection report can be provided with the goods; batch acceptance is carried out in accordance with the above standards and the drawings agreed by both parties.

Q4Which surface treatments are available for the high-precision inner-outer threaded bushing? How do I choose?

Surface treatment specified in the specification table on this page: zinc-plated / passivated (optional). Different coatings differ in appearance, corrosion resistance and cost; select according to the service environment and the order agreement.

Q5When is the high-precision inner-outer threaded bushing required?

When threads in soft base materials (aluminium, magnesium, cast iron, engineering plastics) wear and strip after repeated assembly and disassembly, or when the thread strength is insufficient to withstand the assembly torque, an insert is used to form a wear-resistant, high-strength internal thread in the base material. This is a common solution for thread repair and reinforcement. This is a functional explanation; for verification refer to GB/T 196 and GB/T 197. Data for this model is subject to the specification table on this page. (Applies to this model: “precision inner-outer thread adapter”.)

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