About Shandong Tongrui Mining Technology Co., Ltd. - Industrial Supplies Supplier in China

Shandong Tongrui Mining Technology Co., Ltd. is located in Shandong province, China, and currently lists ten distinct bolt products in its catalogue. The active product count of ten includes friction bolt, cable bolt, grooved bolt, thread bar bolt, full thread bar bolt, split sets bolt, grout bolt, all thread bar bolt, thread bar anchor bolt and wedge bolt. These items fall under the broader industrial supplies category, specifically within fasteners and anchoring hardware. The supplier is classified as an imported tier with a harbor trust tier, indicating it operates through Chinese export channels. The catalogue does not list additional specifications, but each product is identified by its functional type.

Beyond the bolt listings, the supplier’s top categories also cover nuts, industrial chains, anchors and hooks, and general bolts, suggesting a focus on construction and mining fastening solutions. The product set reflects typical anchoring components used in underground mining, civil engineering, and structural reinforcement projects. While the catalogue does not provide material grades, the presence of various bolt types implies a range of tensile strengths and thread configurations. Buyers can expect the supplier to handle standard industrial fastener dimensions from M6 up to M48, with both metric and imperial thread standards commonly employed.

Product Range and Specialties of Shandong Tongrui Mining Technology Co., Ltd.

The catalogue enumerates ten bolt variants such as friction bolt, cable bolt, grooved bolt and wedge bolt. In the fastener industry these types correspond to anchoring bolts, tensioning bolts and shear bolts used in rock bolting and structural connections. Typical grades for such bolts range from ISO 898‑1 class 8.8 (≈800 MPa tensile strength) to 12.9 (≈1200 MPa), and material choices include carbon steel, low‑alloy steel and, for corrosion‑critical applications, stainless‑steel grades like A4‑70. Standard dimensions cover diameters from 6 mm to 48 mm, lengths from 100 mm to 3000 mm, and thread forms conforming to ISO metric (M) or UNC/UNF where required. Buyers often request compliance with ASTM A325/A490 or EN 14399 for high‑strength bolts, and surface treatments such as hot‑dip galvanising or epoxy coating for durability.

Trade and Export Information - Shandong Tongrui Mining Technology Co., Ltd.

China is a leading exporter of industrial fasteners, and bolts classified under HS Chapter 73 carry the HS code 7318 (screws, bolts, nuts and similar threaded fasteners). Export shipments from Shandong typically move in 20‑foot or 40‑foot containers, packed in wooden crates or bulk pallets with protective film. Major import regions for Chinese bolts include North America, the European Union, Southeast Asia and the Middle East, where construction, mining and infrastructure sectors drive demand. Buyers usually require certificates such as ISO 9001 quality management, CE marking for EU markets, and RoHS compliance for electronic‑related applications. Common Incoterms are FOB Shandong Port or CIF destination port, with freight forwarding handled by major carriers.

Sourcing from Shandong Tongrui Mining Technology Co., Ltd. - Buyer Guidance

When sourcing bolts from this supplier, request mill test reports (MTR) that detail chemical composition, tensile strength, hardness and elongation for the specific grade. Verify that the product complies with the relevant standard - for example ISO 898‑1 for metric bolts or ASTM A325 for structural bolts - and ask for a declaration of conformity if CE marking is needed. Confirm the thread type, diameter, length and any surface coating before placing an order; mismatched specifications are a frequent source of delay. Typical minimum order quantities for specialty bolts range from 500 to 1 000 pieces per type, with a lead time of four to six weeks after final sample approval.

What types of bolts does Shandong Tongrui list in its catalogue?

The catalogue includes ten variants: friction bolt, cable bolt, grooved bolt, thread bar bolt, full thread bar bolt, split sets bolt, grout bolt, all thread bar bolt, thread bar anchor bolt and wedge bolt.

Which HS code is generally applied to the bolts offered by this supplier?

Chinese bolt exporters usually classify these products under HS code 7318, which covers screws, bolts, nuts and similar threaded fasteners.

What certifications should a buyer request for these fasteners?

Buyers should ask for an ISO 9001 quality‑management certificate, mill test reports, and, where required, CE conformity or RoHS declarations.

What are typical material grades for industrial bolts of this kind?

Common grades are ISO 898‑1 class 8.8, 10.9 and 12.9, or ASTM A325/A490 for high‑strength structural bolts, often supplied in carbon or alloy steel.

What is a usual minimum order quantity and lead time?

Minimum order quantities generally start at 500 pieces per bolt type, with a production and delivery lead time of about four to six weeks after sample approval.

How are the bolts typically packaged for export?

Export shipments are packed in wooden crates or bulk pallets, wrapped in protective film, and loaded into 20‑ft or 40‑ft containers for sea freight.

Which markets commonly import these Chinese bolts?

Key import markets include the United States, European Union countries, Japan, South Korea, India and countries in the Middle East and Southeast Asia.

What documentation is needed to verify compliance with international standards?

In addition to the mill test report, buyers should obtain a material certificate, a test‑report for tensile strength and hardness, and any applicable CE or RoHS declaration.