
Hexagonal head blind hole rivet nuts are precision fasteners with a special structure. One end is a hexagonal flange, and the other end is a closed blind hole. The shank is a smooth cylinder, and the inner hole is machined with metric machine threads. Common sizes range from M3 to M12. They are made from a variety of commonly used materials, including high-quality low-carbon steel, medium-carbon steel, alloy steel, 304 stainless steel, 316 stainless steel, brass, and aluminum alloy, allowing for selection of appropriate materials to meet different needs. Strength grades are diverse: carbon steel includes grades 4.8, 6.8, and 8.8; stainless steel includes A2-50, A2-70, A4-70, and A4-80; and non-ferrous metals are at least grade 4.8. Surface treatments are plentiful, including environmentally friendly blue-white zinc plating, color zinc plating, black zinc plating, environmentally friendly nickel plating, zinc-nickel alloy plating, Dacromet coating, electrophoresis, PVD, stainless steel natural finish, and stainless steel passivation. This product is suitable for various scenarios such as connecting thin-walled sheets requiring waterproof and dustproof properties, fixing automotive parts, installing outdoor equipment frames, assembling electronic equipment housings, and connecting furniture hardware.
GB/T 17880.6、ISO 15978、IFI 114、DIN 7337, We support customized production based on customer-provided drawings or industry standards.
Available grades: Carbon steel 4.8/6.8/8.8/10.9/12.9; Stainless steel A2-50, A2-70, A4-70, A4-80
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.
Connection of thin-walled sheets requiring waterproof and dustproof properties; fixing of automotive parts; installation of outdoor equipment frames; assembly of electronic equipment housings; and furniture hardware connections.
Automotive-specific parts, electronic-specific parts
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 Hexagon Head Blind Hole Riveting Nut Suppliers and Wholesale Hexagon Head Blind Hole Riveting NutExporter && 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...