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Square Nuts
This product is a square nut, cold-forged, with precise threads. The square head makes it easy to grip with a wrench, ensuring even force distribution and strong torque transmission. It is suitable for heavy-duty connections and can be used with square head bolts for a secure connection. The full range covers mainstream specifications, is readily available, has a rust-proof surface treatment, undergoes quality control, complies with environmental regulations, and can provide compliance documentation. Custom sizes are also available.
- Executive Standard
- Specification Range
- Grade & Strength
- Common Materials
- Surface Treatment
- Surface Treatment
- Industry Classification
GB/T 39; ISO 4035; ANSI/ASME B18.2.2; DIN 557
Metric: M1.6~M36, thread tolerance 6H, full coverage of coarse/fine threads, regular square dimensions, thickness conforms to standard specifications, suitable for corresponding bolts/screws; Imperial: thread specifications #2-56~1"-8, suitable for UNC/UNF American standard thread system, square dimensions conform to American and German standards.
Carbon steel grades 4, 6, 8, and 10; stainless steel grades A2 and A4; US grade 2/5/8.
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.
Suitable for heavy machinery, steel structures, agricultural equipment, outdoor facilities, etc., and for connection scenarios that require manual or wrench tightening and high torque. The square head distributes force evenly and is not prone to slippage.
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 Square Nuts Suppliers and Wholesale Square NutsExporter && 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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