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Anti-loosening Sealing fastening for battery packs and control-unit housings

Multifunctional sealed anti-loosening screw

MaterialHigh-strength alloy steelSealing and conditionsIP68Surface 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 YF ZCJ sealing anti-loosening multifunction screw combines fastening, locking and sealing in one part: a microencapsulated locking adhesive is pre-applied to the thread, and a sealing element is integrated under the head or at the thread root. When the screw is tightened, the adhesive layer is compressed and fills the thread clearance while the sealing ring is compressed in step. A single assembly therefore gives both reliable locking and IP68 protection, which suits locations that are compact and do not allow an additional washer.

Technical Features
Pre-applied micro-encapsulated locking adhesive: after tightening the layer breaks and cures, resisting vibration looseningThe sealing structure can be placed under the head or on the thread; the complete unit meets IP68 for water and dustOne part replaces the three-part bolt + locking adhesive + sealing ring solution, cutting assembly steps and the risk of missing partsCold-formed with precision thread rolling; thread accuracy held at 6gHead type, thread length, seal material and adhesive amount can be customised to drawing
Applications
Battery packs and control-unit housings for new energy vehiclesOutdoor telecom cabinets and EV chargersFluid components such as water pumps and valve bodiesWet and dusty areas of construction machinery

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)
Sealing and conditions IP68
Standard Thread GB/T 196, GB/T 197 (ISO 965-1) 6g; mechanical properties GB/T 3098.1 (ISO 898-1); sealing class IP68 (IEC 60529)
Typical application Sealing fastening for battery packs and control-unit housings

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 sealed anti-loosening multi-function screw (cold-formed with precision thread rolling) 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 sealed anti-loosening multi-function screw (cold-formed with precision thread rolling) used?

Typical applications listed in the product description on this page: battery packs and electronic control housings for new energy vehicles; outdoor telecom cabinets and EV chargers; fluid components such as water pumps and valve bodies; wet and dusty areas of construction machinery. Overview: the YF ZCJ sealing anti-loosening multifunction screw combines fastening, locking and sealing in one part. A microencapsulated locking adhesive is pre-applied to the thread, and a sealing element is integrated under the head or at the thread root; when the screw is tightened, the adhesive layer is compressed and fills the thread clearance while the sealing ring is compressed at the same time.

Q3What manufacturing process is used for the sealed anti-loosening multi-function screw (cold-formed with precision thread rolling)?

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 sealed anti-loosening multi-function screw (cold-formed with precision thread rolling)?

Features listed in the product description on this page: microencapsulated locking adhesive pre-applied, which breaks and cures after tightening to resist vibration loosening; the sealing structure can be located either under the head or on the thread, so the whole unit meets IP68 water and dust protection; one part replaces the three-part combination of bolt, locking adhesive and sealing ring, cutting assembly steps and the risk of missing parts; cold forming with precision thread rolling keeps thread accuracy at 6g.

Q5What is the locking principle of pre-applied adhesive parts such as the sealed anti-loosening multi-function screw (cold-formed with precision thread rolling)?

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: “sealing anti-loosening multifunction screw (cold-formed with precision thread rolling)”.)

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