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Anti-loosening Sealing fastening for exposed threaded holes

Compact Torx Cylinder Head Assembly Screw with Pre-Applied A

MaterialHigh-strength alloy steelSurface treatmentBlack oxide / zinc plated / zinc-nickel alloy
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Product description

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

The preapplied adhesive sealing bolt is cold headed to high precision, with a special leak-proof sealant preapplied on the thread. After tightening, the adhesive layer compresses and fully fills the thread clearance, achieving mechanical locking and thread sealing with corrosion protection at the same time, suited to areas where threaded holes are exposed to liquids or dust.

Technical Features
The pre-applied sealant is compressed and fills the thread clearance, sealing the thread and protecting against corrosionMechanical locking and sealing in one step: one part does the work of twoGood media resistance for oil, water and coolant environmentsOnce cured, the adhesive seals the thread clearance, combining locking and corrosion protectionHigh-strength alloy steel body, load capacity unaffected
Applications
NEV battery packsOutdoor control and charging equipmentWater pumps and hydraulic manifold blocksFloor scrubbers and outdoor luminaires

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 High-strength alloy steel
Process Cold heading
Surface treatment Black oxide / zinc plated / zinc-nickel alloy (optional)
Standard Thread GB/T 196, GB/T 197 (ISO 965-1) 6g; mechanical properties GB/T 3098.1 (ISO 898-1); thread sealing and corrosion protection (protection class determined by testing under actual service conditions); preapplied sealing adhesive per corporate standard
Typical application Sealing fastening for exposed threaded holes

Spec lookup

Use your own operating conditions to look up the 21 models in this series directly - front-end filtering only, no redirects, no address change

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 & customization

No public catalogue is available for this series; drawing-based requests are handled per project.

2D

Made to drawing / sample replication

A 2D drawing or a physical sample is enough for evaluation; once confirmed, we issue drawings, build samples and obtain first-article approval before volume production. Drawings and project information are handled under confidentiality requirements.

Submit drawing request

Manufacturing process

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

  • Body formingCold heading or turning
  • Anti-loosening structure machiningSerrated face, slotted, nylon patch or pre-applied adhesive
  • AssemblyScrew, washer and nut combined into one part
  • Heat treatmentQuenched and tempered metal body
  • Torque verificationSampling inspection of tightening and loosening performance

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 is the pre-applied adhesive sealed bolt (mechanical locking plus thread sealing) available in, and what strength level does it reach?

Marked in the specification table on this page: material is high-strength alloy steel. Material certificates and mechanical property test reports can be supplied with the goods; batch acceptance follows the data above.

Q2What are the main features of the pre-applied adhesive sealed bolt (mechanical locking plus thread sealing)?

Features listed in this product description: the preapplied sealant fills the thread clearance under compression, providing thread sealing and corrosion protection; mechanical locking and sealing are completed in one step, one part doing the work of two; it resists media well in oil, water and coolant environments; once cured, the adhesive layer seals the thread clearance, combining locking with corrosion protection.

Q3To which standard is the pre-applied adhesive sealed bolt (mechanical locking plus thread sealing) produced and accepted?

Standards marked in the specification table on this page: thread GB/T 196, GB/T 197 (ISO 965-1) 6g; mechanical properties GB/T 3098.1 (ISO 898-1); thread sealing and corrosion protection (the protection level is determined by testing under actual service conditions); pre-applied sealant to company standard. Dimensional inspection reports can be supplied with the shipment; batch acceptance follows the standards above and the drawing agreed by both parties.

Q4Which surface treatments are available for the pre-applied adhesive sealed bolt (mechanical locking plus thread sealing), and how to choose?

The specification table on this page lists surface treatments: black oxide / zinc plated / zinc-nickel alloy (optional). Different coatings differ in appearance, corrosion resistance and cost; choose according to the service environment and order agreement.

Q5What is the locking principle of pre-applied adhesive parts such as the pre-applied adhesive sealed bolt (mechanical locking plus thread sealing)?

A viscoelastic adhesive layer is pre-applied to the threaded section. After the screw is driven in, the adhesive fills the gaps between the thread flanks and gives the thread pair continuous damping and adhesion, suppressing back-rotation. Residual locking capacity remains after re-assembly, but it decreases with the number of assembly cycles. The pre-application process follows the company standard; the thread is GB/T 196, GB/T 197 6g. (Applies to this model: “pre-coated adhesive sealing bolt (dual function of mechanical locking and thread sealing)”.)

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