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Double End Studs
This product features threaded ends and a smooth central rod, cold-forged and rolled for precision threads and easy positioning. One end screws into the workpiece, while the other is fitted with a nut, ensuring a reliable connection and suitability for blind hole applications. The full range covers mainstream systems, with readily available stock. Quality control ensures compliance with environmental regulations; compliance documentation is available. Non-standard customization is supported, and flexible connection solutions are offered.
- Executive Standard
- Specification Range
- Grade & Strength
- Common Materials
- Surface Treatment
- Surface Treatment
- Industry Classification
National Standards GB/T 897, GB/T 898, GB/T 899, GB/T 900; International Standards ISO 4034, ISO 898-1; American Standards ANSI/ASME B18.31.1, ASTM A193; German Standards DIN 939, DIN 835
Metric specifications: Thread sizes M3~M64, coarse/fine thread coverage, nominal length 20mm~1000mm, thread insertion length bm=1d/1.25d/1.5d/2d, suitable for different base materials such as steel, cast iron, and aluminum alloy; Imperial specifications: Thread sizes #4-40~2"-12, suitable for UNC/UNF American standard thread systems, nominal length 1/2"~40
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.
Suitable for connecting two workpieces, such as machinery and automotive engines, especially for scenarios where it is impossible to install nuts on the back side, such as blind holes and deep cavities.
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 Double End Studs Suppliers and Wholesale Double End StudsExporter && 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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