High Strength Bolt Factory in Yongnian, China
Jindai Fasteners is a high strength bolt factory based in Yongnian, Handan, the fastener industrial base of Hebei, China. We produce grade 8.8, 10.9 and 12.9 high strength bolts, heavy-duty nuts, threaded studs, anchor bolts and custom fastener parts for construction, engineering machinery, wind-power new energy, petroleum and heavy-equipment projects.
As a high strength bolt factory with cold heading, thread rolling, heat treatment and mechanical testing on one site, we keep lead time predictable and quality traceable. Product details are on our high strength bolts product matrix, and grade differences are explained in the 8.8, 10.9 and 12.9 comparison.
- 5,000 tAnnual production capacity
- 50+Cold heading and thread rolling lines
- 10+ yrsExport experience in industrial markets
- ISO 9001Quality system with batch test reports
Products from Our High Strength Bolt Factory
Standard and non-standard fasteners to DIN, ISO and ANSI, including:
Bolts and Nuts
- Grade 8.8 / 10.9 / 12.9 high strength bolts, M8–M36
- Heavy-duty nuts and flat / spring washers
Studs, Rods and Anchors
- Double end studs and threaded rods
- Anchor bolts, expansion bolts and chemical anchors
- Custom fasteners to drawings
Quality Control at Our High Strength Bolt Factory
Every production link follows documented standards, from incoming wire rod inspection to heat treatment and finished-product testing.
In-Process and Final Testing
- Tensile strength and proof load testing
- Hardness testing on core and surface
- Charpy impact testing where required
- Batch test reports issued before shipment
Why Buyers Choose Our High Strength Bolt Factory
Stable Grade Quality
As a high strength bolt factory, we control material, heat treatment and surface finishing in one site. Grade 8.8, 10.9 and 12.9 bolts are produced to DIN 931, DIN 933, ISO 4014, ISO 4017 and ANSI B18.2.1.
Batch Test Reports and Delivery
Each batch is inspected before shipment, and test reports cover tensile strength, proof load, hardness and impact where required. Bulk export orders are handled with OEM and custom specifications. For more detail, see our factory capability and quality control and test reports pages.