Import A563m 10s Heavy Hex Nuts Dacromet — Buy in wholesale FOB from Supplier in China

The A563m 10s Heavy Hex Nuts Dacromet are precision-engineered fasteners designed for high-load industrial use. They conform to the A563m 10S specification, which defines their mechanical properties, including proof load and hardness, to ensure reliable performance under stress. Supplied in sizes from M12 to M36, these nuts feature a Dacromet coating that delivers superior corrosion resistance, making them suitable for outdoor or chemically aggressive environments where standard zinc plating would degrade.

Manufactured from medium-carbon steel, these heavy hex nuts offer a balance of strength and ductility, with typical material grades including SAE J429 Grade 5 or 8. The Dacromet finish, a zinc-aluminium flake coating, provides up to 500 hours of salt spray resistance, exceeding the protection of conventional zinc plating. Threads are cut to standard ISO 724 tolerance, ensuring compatibility with bolts of the same specification. Typical industry practice includes a minimum tensile strength of 800 MPa for Grade 10S nuts, with hardness values in the range of 24-32 HRC.

These nuts are primarily used in construction, automotive chassis assemblies, and heavy machinery where vibration resistance and long-term durability are critical. Buyers typically source them in bulk under FOB or CIF terms, with packaging in 25 kg cartons or palletised loads. The heavy hex design provides a larger bearing surface than standard nuts, reducing the risk of pull-through in high-torque applications. Confirm lead times and incoterms directly with Ningbo S&D Metalwork Co., Ltd., as these depend on order volume and destination port.

Ningbo S&D Metalwork Co., Ltd. is based in Yinzhou District, Ningbo, Zhejiang Province, China, a region recognised for its concentration of precision fasteners and hardware manufacturers. The company’s address at 315114 places it within an industrial hub with direct access to Ningbo Port, a major gateway for bulk exports. The supplier is classified under the imported tier, indicating it sources or produces components for international markets.

The supplier’s profile shows a harbor trust tier, reflecting a baseline level of verification for export capability. While the response rate is currently listed as 0.00, this may indicate new or seasonal activity; buyers are advised to contact the company directly for current lead times and production capacity. The listing confirms the supplier specialises in fasteners, with the A563m 10s Heavy Hex Nuts Dacromet as a core product line. No additional certifications, headcount, or historical data are provided in the available profile.