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China Double-End Stud Bolts - Precision Fasteners from Leading Suppliers & Factory for Industrial Applications
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
Threaded on both ends for secure connections with nuts
Strong tensile and yield strength, ideal for high-stress joints
Withstands high temperature and pressure in critical environments
Precision threading ensures easy installation and reliable clamping force
Suitable for use with nuts and washers in flange assembly systems
Corrosion-resistant coatings available for marine, offshore, and chemical environments
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 |
- 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 (FAQ)
What standards do your double-end stud bolts comply with?
Our double-end stud bolts are manufactured to meet major international standards, including DIN 938, DIN 939, DIN 835, ASTM A193 (Grades B7, B8, B16), ASTM A320, as well as ISO, BS, JIS, and customized non-standard specifications.
What materials are available for the threaded studs?
We offer a wide range of materials, including carbon steel (Grades 4.8, 8.8, 10.9), alloy steel (B7, B7M, B16), stainless steel (SS304, SS316, SS316L), and specialty materials like brass, copper, or titanium upon request.
Can I request customized sizes and thread types?
Yes. We support custom thread types including Metric, UNC, UNF, and BSW. The size ranges from M6 to M64 (or 1/4" to 2.5" in diameter) and lengths from 20mm to 2000mm to suit your specific requirements.
What surface finishes do you provide for corrosion resistance?
To protect studs in harsh environments, we offer surface treatments such as Black Oxide, Zinc Plating, Hot-Dip Galvanized (HDG), and PTFE/Xylan coatings for superior chemical and marine resistance.
What is the standard lead time and shipping port?
The typical lead time is 10 to 25 days, depending on the order volume and customization specifications. All export shipments are dispatched from Tianjin Port, China.
How are the stud bolts packaged for export?
We package our products in bulk using cartons and pallets, or secure wooden boxes specifically designed for export. Customized markings and packaging can also be arranged to meet your needs.