Import Button Head Socket Cap Screw — Buy in Bulk from Supplier in China

Button head socket cap screws from Handan Daoning Fasteners Co., Ltd. are precision-engineered fasteners designed for applications demanding a low-profile head and high torque capacity. The listing covers sizes from #0 to 5/8 inches and M3 to M16, with materials including carbon steel, alloy steel, stainless steel, and brass. Grades span ASTM A307 Gr. A, Class 4.8, 5.8, 6.8, 8.8, 10.9, and 12.9, while thread types include metric (M), UNC, and UNF, ensuring compatibility with global standards like AMSE B18.3, ISO 7380, and GB 70.2.

Surface finishes range from plain to zinc plated (clear, blue, yellow, or black), black oxide, nickel, chrome, and hot-dip galvanised (H.D.G), providing corrosion resistance tailored to environments such as structural steel, oil and gas, wind energy, and automotive sectors. The screws are manufactured with tight dimensional tolerances, verified using equipment like calipers, go/no-go gauges, tensile test machines, and salt spray testers. Packaging is bulk in cartons (max 25 kg) with wood pallets, or customised to buyer specifications.

These screws are widely used in metal buildings, mechanical machinery, towers, poles, and home decorating due to their ability to withstand high clamping forces while maintaining a flush or slightly raised profile. Buyers typically source them in bulk, with a minimum order of 500 kg per specification and a supply capacity of 1000 tons per month. Trade terms include FOB, CIF, CFR, CNF, EXW, DDU, and DDP, with payment options such as T/T and L/C. The supplier provides material and test reports, as well as free samples for special or non-standard products.

Handan Daoning Fasteners Co., Ltd. is based in Congtai District, Handan, Hebei Province, China, operating from Room 103, 6/F, Jishan Apartment, Ring Road No. 26. The company specialises in the production and export of fasteners, including socket cap screws, with a focus on serving global markets such as South and North America, Europe, East and Southeast Asia, and Australia. Its trust tier is classified as Harbor, and while the response rate is currently listed as 0.00, the supplier offers technical support, free samples, and comprehensive material and test reports to validate product quality.

The supplier’s manufacturing capabilities include advanced testing equipment such as tensile test machines, hardness testers, and salt spray testers to ensure compliance with international standards. It provides a wide array of trade terms, including FOB, CIF, CFR, CNF, EXW, DDU, and DDP, and accepts payment methods like T/T and L/C. The company’s minimum order requirement is 500 kg per specification, with a monthly supply capacity of 1000 tons, catering to bulk buyers in industries like structural steel, oil and gas, and mechanical machinery.