Import Bolts — Buy in Bulk from Supplier in China

Shaoxing Dongkai Import & Export Co., Ltd. offers metric bolts spanning M5 to M76 in diameter and 10 mm to 1000 mm in length, with strength grades from 4.6 to 10.9. These threaded fasteners suit construction, automotive assembly and heavy machinery where tensile and shear resistance are critical. The range covers standard coarse-pitch ISO metric threads, with finer pitches available on request. Material options include carbon steel and alloy steel, with surface treatments such as zinc plating, hot-dip galvanising and black oxide to match environmental exposure.

The 4.6 grade provides a minimum tensile strength of 400 MPa and 0.6 yield ratio, suitable for light structural and secondary fixings. Grades 8.8 and 10.9 deliver 800 MPa and 1000 MPa minimum tensile strengths respectively, with yield ratios of 0.8 and 0.9, enabling use in high-stress joints and dynamic-load applications. Standard industry practice calls for grade marking on the bolt head and, for property class 8.8 and above, manufacturer identification. Thread tolerances are typically 6g for external threads, with 6H for matching nuts.

Buyers in infrastructure, OEM manufacturing and MRO sectors source these bolts for steel frameworks, conveyor systems, vehicle chassis and pressure vessels. The supplier notes compliance with ISO, DIN, BS, ANSI/ASME, JIS and GB standards, though buyers should request mill test certificates and third-party inspection reports for critical applications. Packaging is typically bulk in wooden crates or pallets; confirm MOQ, lead time and whether FOB or CIF terms apply directly with Shaoxing Dongkai.

Shaox Shaoxing Dongkai Import & Export Co., Ltd. is located in the Startup Area of Binhai Industrial Zone, Shaoxing, Zhejiang Province, China, with postal code 312000. The supplier is classified as an imported-tier vendor with harbour trust status. The response rate is listed at 0.00 percent and average response hours at zero, which indicates no response data is available through the platform. Buyers should initiate direct contact to gauge communication reliability and English-language capability before committing to orders.

The company profile does not disclose year of establishment, registered capital, factory size, annual turnover, employee count, or specific client references. No certifications are listed independently of the product claims. The listing positions Shaoxing Dongkai as a source for standard and high-strength metric bolts across a broad dimensional range. Prospective buyers should request a company introduction, business licence, and quality management system certificate directly from the supplier to complete due diligence.