Import Din6914 Heavy Hex Structural Bolt — Buy in Bulk from Supplier in China

DIN6914 heavy hex structural bolts from Handan Daoning Fasteners Co., Ltd. are manufactured to DIN 6914, ASME B18.2.1, and GB1228 standards, designed for load-bearing connections in steel structures. These bolts are produced from carbon or alloy steel with a minimum tensile strength of 1040 MPa, meeting Class 10.9 requirements. Sizes range from M12 to M36, with inch equivalents up to 1-1/2 inches, supporting both metric and imperial project specifications.

The bolts are available in plain, zinc-plated (clear, blue, yellow, black), black oxide, nickel, chrome, and hot dip galvanized finishes. The supplier uses controlled heat treatment to achieve uniform mechanical properties across the bolt body and thread. Surface treatments are applied post-heat treatment to avoid degradation of strength. Packaging is bulk in 25kg cartons on wooden pallets, with custom options available.

These bolts are used in structural steel buildings, wind turbine towers, oil and gas pipelines, and heavy machinery frames. Buyers include engineering contractors in North and South America, Europe, and Southeast Asia. The supplier states a monthly capacity of 1000 tons and accepts a minimum order of 500kg per size. Lead time, packaging, and certification details must be confirmed directly with the supplier before ordering.

Handan Daoning Fasteners Co., Ltd. is located in Congtai District, Handan, Hebei Province, China, within a region known for fastener manufacturing. The company operates under a harbor trust tier, indicating verified export activity, but no certifications, client names, or production history are disclosed. Response metrics are not available, suggesting limited digital customer engagement, but this does not reflect production capability.

The supplier produces structural bolts using standard industrial equipment including tensile testers, salt spray chambers, and hardness testers. They state they supply material and test reports, but do not claim ISO certification, years in business, or workforce size. Their operational focus appears to be volume production for international markets, with no indication of custom engineering or small-batch specialization.