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Anti-loosening Ultra-low head locking fastening for thin structures

Hexalobular Socket Head P85 Anti-Loosening Screw

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

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

The CM ultra-thin nylon-patch locking screw uses a strongly thinned head to fit extreme assembly spaces, with a Nylok-type nylon locking patch pre-applied to the thread that produces spring-back resistance through physical compression for vibration-resistant locking. It allows repeated assembly and suits precision equipment with limited space where adhesive cannot be applied on site.

Technical Features
Ultra-low head significantly reduces assembly heightPre-applied nylon adhesive locks through elastic resistance torque and can be re-usedNo on-site adhesive application, simplifying assemblyPrecision cold heading keeps head thickness and thread form consistentFits tight spaces and automated driving
Applications
Slim electronic devicesOptical modules and camera unitsLaptops and tabletsMiniature electromechanical products

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 (optional)
Standard Thread GB/T 196, GB/T 197 (ISO 965-1) 6g; mechanical properties GB/T 3098.1 (ISO 898-1); preapplied nylon adhesive locking per corporate standard
Typical application Ultra-low head locking fastening for thin structures

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 CM ultra-thin head nylon-adhesive anti-loosening screw 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.

Q2Where is the CM ultra-thin head nylon-adhesive anti-loosening screw used?

Typical applications listed in the product description on this page: thin and light electronic devices; optical modules and cameras; notebooks and tablets; micro electromechanical products. Overview: the CM ultra-thin nylon-patch locking screw uses a strongly thinned head to fit extreme assembly spaces, and a Nylok-type nylon locking patch is pre-applied to the thread, where physical compression generates spring-back resistance for vibration-resistant locking.

Q3What manufacturing process is used for the CM ultra-thin head nylon-adhesive anti-loosening screw?

The specification table on this page states the process as cold heading. The process route follows drawing and order requirements; first-article approval is provided before volume production.

Q4What are the main features of the CM ultra-thin head nylon-adhesive anti-loosening screw?

Features listed in this product description: ultra-thin head that significantly lowers assembly height; preapplied nylon adhesive locks through rebound drag torque and allows repeated disassembly; no on-site gluing needed, simplifying the assembly process; precision cold heading ensures consistent head thickness and thread profile.

Q5What is the locking principle of pre-applied adhesive parts such as the CM ultra-thin head nylon-adhesive anti-loosening screw?

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: “CM ultra-thin nylon-patch locking screw”.)

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