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Double-End Stud Bolts from China Factory | Quality Fasteners Suppliers for Flanged Connections and Machinery
Technical Specifications
| Product Name | Double-End Stud Bolt / Threaded Stud / Stud with Nuts |
| Ends | Threaded at both ends, with unthreaded center shank or fully threaded |
| Thread Type | Metric / UNC / UNF / BSW |
| Thread Length | Equal or customized thread length on both ends |
| Standards | DIN 938, DIN 939, DIN 835 |
| ASTM A193 B7/B8/B16, A320 | |
| ISO / BS / JIS / Non-Standard | |
| Material | Carbon Steel (Grade 4.8 / 8.8 / 10.9) |
| Alloy Steel (B7, B7M, B16) | |
| Stainless Steel (SS304 / SS316 / SS316L) | |
| Brass, Copper, or Titanium (available upon request) | |
| Surface Finish | Black Oxide |
| Zinc Plated | |
| Hot-Dip Galvanized (HDG) | |
| PTFE / Xylan Coated for corrosion resistance | |
| Size Range | Diameter: M6 – M64 or 1/4" – 2.5" |
| Length: 20mm – 2000mm or customized |
Product Features
Applications
Oil & gas pipelines and flanged connections
Boilers, pressure vessels, and heat exchangers
Petrochemical plants and power stations
Heavy equipment and industrial machinery
Wind energy, marine engineering, and steel structures
Packaging & Delivery
| Packaging | Bulk in cartons and pallets |
| Wooden boxes for export | |
| Customized marking and packaging available | |
| Lead Time | 10–25 days based on order volume and specifications |
| Shipping Port | Tianjin, China |
Why Choose Hebei Chudu
- Over 10 years of fastener manufacturing expertise
- ISO 9001-certified production and strict quality control
- Large inventory of raw materials and standard stud sizes
- Customized threading, length, and materials supported
- Exported to over 30 countries with stable long-term clients
Frequently Asked Questions
What standards do your double-end stud bolts comply with?
Our double-end stud bolts are manufactured to comply with DIN 938, DIN 939, DIN 835, ASTM A193 B7/B8/B16, A320, and ISO / BS / JIS / Non-Standard specifications.
What materials and surface finishes can I choose from?
We offer Carbon Steel (Grade 4.8 / 8.8 / 10.9), Alloy Steel (B7, B7M, B16), Stainless Steel (SS304 / SS316 / SS316L), and Brass, Copper, or Titanium on request. Available finishes include Black Oxide, Zinc Plated, Hot-Dip Galvanized (HDG), and PTFE/Xylan coating.
What size ranges do you manufacture for these stud bolts?
We support diameters from M6 to M64 (or 1/4" to 2.5") and lengths ranging from 20mm up to 2000mm. Customized lengths and thread specifications are also fully supported.
What is the typical lead time and shipping port for orders?
Our standard lead time is 10–25 days depending on the specific order volume and requirements. All shipments are dispatched from the Tianjin Port in China.
How are the stud bolts packaged for export?
We provide bulk packaging in cartons and pallets, wooden boxes for export, and customized marking and packaging based on your specific requirements.
Why should I choose Hebei Chudu as my fastener supplier?
Hebei Chudu brings over 10 years of manufacturing expertise, ISO 9001-certified production, strict quality control, a large raw material inventory, and customized design options, serving clients in over 30 countries.