Import 12.9 Yellow Zinc Half Thread Din 912 Screws — Buy in wholesale FOB from Supplier in China

These DIN 912 socket head cap screws from Changshu City Standard Parts Factory Co. Ltd are metric fasteners manufactured to the 12.9 property class, the highest strength grade for standard structural bolts and screws. The listing specifies a yellow zinc plated finish, a socket (hexagonal recess) head style, and a half-thread configuration where a portion of the shank remains unthreaded. Available sizes range from M4 to M24, and the supplier offers packing in boxes, bulk, or on EPAL pallets for export shipments.

A 12.9 grade screw is typically made from alloy steel, such as chromium-molybdenum (CrMo), quenched and tempered to achieve a minimum tensile strength of 1,220 MPa. The yellow zinc plating provides a decorative, slightly golden appearance and offers moderate corrosion resistance, often specified in automotive and machinery assembly. The DIN 912 standard defines the precise dimensional tolerances for the socket head, including the head diameter, height, and hexagonal drive size, ensuring interchangeability across international supply chains.

These screws are commonly sourced by automotive parts distributors, industrial machinery assemblers, and construction equipment manufacturers who require reliable high-strength fasteners. The supplier, based in Jiangsu province, a major fastener production hub in China, lists the DaLi brand and offers finishes including black oxide and standard zinc plating in addition to yellow zinc. Buyers should confirm the exact thread pitch for their required size, the specific alloy steel grade used, and the salt spray test performance of the yellow zinc coating before placing a bulk order.

Changshu City Standard Parts Factory Co. Ltd is a fastener manufacturer located at No. 358 Tonggang Road in Changshu, Jiangsu province, China. Changshu and the surrounding Suzhou region form one of China's largest clusters for standard and special fastener production, giving the supplier direct access to established logistics networks and raw material sourcing. The company lists the DaLi brand for its socket head cap screws and operates within a harbour trust tier on the platform.

The supplier's listing indicates a response rate of 0.00%, meaning there is no recorded history of replying to buyer inquiries through the platform. This does not preclude direct contact, but prospective importers should verify current responsiveness by reaching out via the contact details provided. The listing confirms the factory's location in Jiangsu and its product focus on metric DIN-standard fasteners, but does not provide details on production capacity, export history, or third-party certifications, all of which should be requested directly before committing to an order.