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Anti-Loosening Screw
This product features a built-in anti-loosening structure (nylon ring, thread adhesive, serrations, etc.), cold-forged for precision threads. Once tightened, the anti-loosening structure effectively prevents vibration-induced loosening, making operation convenient and eliminating the need for additional anti-loosening washers. The entire series includes various anti-loosening structures and head types, readily available in stock. Surface rust-proofing treatment ensures compliance with quality control and environmental regulations. Compliance documentation is available, and non-standard customization is supported to meet high anti-loosening requirements.
- Executive Standard
- Specification Range
- Grade & Strength
- Common Materials
- Surface Treatment
- Surface Treatment
- Industry Classification
Customized according to the drawing
Metric: Thread M1.6~M20, length 3mm~80mm, head type hex/Phillips/hex, anti-loosening structure (nylon ring/thread adhesive/serration); Imperial: Thread #0-80~#10-32, length 1/8"~3"
Carbon steel grades 4.8, 6.8, and 8.8; stainless steel grades A2-50, A2-70, A4-70, and A4-80; non-ferrous metals grade not lower than 4.8.
High-quality low-carbon steel, medium-carbon steel, alloy steel, 304 stainless steel, 316 stainless steel, brass, aluminum alloy, etc.
Environmentally friendly blue-white zinc, colored zinc, black zinc, environmentally friendly nickel plating, zinc-nickel alloy plating, Dacromet coating, electrophoresis, PVD, stainless steel natural color, stainless steel passivation, etc.
It is suitable for applications such as vibration equipment, automotive parts, and construction machinery, and is ideal for scenarios with frequent vibration and high requirements for anti-loosening. No additional anti-loosening components are needed, and the locking is reliable.
Do you need non-standard fasteners, precision metal parts, or custom structural components for a specific application?
Yongji helps you develop and manufacture special parts and custom products based on your drawings, samples, technical requirements, and target application scenarios.
Whether you need prototype quantities, pilot production, or stable mass supply, we provide an integrated solution from engineering review to production and delivery.
From fasteners to structural parts, Yongji offers integrated development and manufacturing for a wide range of custom precision hardware products.
Whether you need a few pieces for validation, small batches for development, or large volumes for mass production, we can support your project at different stages.
With integrated manufacturing resources in China and Vietnam, Yongji helps customers achieve stable quality, scalable production, and reliable delivery.
Yongji Precision Hardware is a global manufacturer specializing in precision fasteners and metal structural components. We are China Anti-Loosening Screw Suppliers and Wholesale Anti-Loosening ScrewExporter && Company. Founded in 2003, the company has over two decades of experience serving international OEM and ODM customers across multiple industries.
With integrated manufacturing capabilities including cold heading, stamping, CNC machining and sheet metal fabrication...
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