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Socket Head Cap Screw
This product features an internal hexagonal head and cylindrical head structure, cold-forged, providing strong torque transmission and easy operation. The cylindrical head ensures a tight fit with the workpiece surface, with precise threads and a secure connection, making it suitable for precision assembly scenarios. The full range covers mainstream systems, is readily available, features rust-proof surface treatment, passes quality control, complies with environmental regulations, and can provide compliance documentation. Custom lengths and head sizes are also supported.
- Executive Standard
- Specification Range
- Grade & Strength
- Common Materials
- Surface Treatment
- Surface Treatment
- Industry Classification
GB/T 70.1; ISO 4762; ANSI/ASME B18.3.1M; DIN 912; Fine thread conforms to GB/T 70.3 and ISO 8674
Metric: M1.6~M30, length 2mm~200mm, thread tolerance 6g, coarse/fine thread full coverage, screws are available in full thread and half thread structures. Imperial: thread size #2-56~1"-8, nominal length 1/8"~8", compatible with UNC/UNF American standard thread systems.
Carbon steel grades 4.8, 6.8, 8.8, 10.9, and 12.9; 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.
For precision instruments, electronic equipment, mold manufacturing, automotive parts, and other applications, this product is suitable for connection scenarios with high precision and aesthetic requirements. The internal hexagonal hidden design does not protrude from the workpiece surface.
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 Socket Head Cap Screw Suppliers and Wholesale Socket Head Cap 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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