Henan Sheng He Pipe Industry Co., Ltd., have an experience spanning for over ten years, producing and supplying best-in-class products, minimize cost by getting manufacturing processes under one roof and delivering consignments on a daily basis only because of a diligent and dedicated team. We are manufacturers, suppliers and exporters of Stud Bolt.
What is Stud Bolt?
A stud bolt is an externally threaded rod with two heavy hexagon nuts. It has a plain shank, usually made from grade 4.6 carbon steel or grade 8.8 stainless steel, with rolled threads on both ends. The threading helps ensure that the nuts remain secure and prevent the bolt from breaking during installation or removal.
Stud bolts come in different lengths and diameters and are available with either metric or imperial measurements (measured in inches). The most common size for stud bolts ranges from M10 (10mm) to M48 (48mm). Larger sizes may also be available depending on your application needs.
Types of Stud Bolts
Different types of stud bolts are available, depending on the threading pattern and design, as shown below:
- Fully threaded stud bolt – also called as continuous threaded stud bolt with a fixed thread length
- Tap ends stud bolt – with uneven threads on both ends and a non-threaded center.
- Double-end stud bolts – with threaded ends of equal length and a non-threaded center.
- Flange Stud Bolts – a fully threaded stud bolt with a chamfered end, specifically designed for flanged connections.
- Double-end stud bolt with reduced shank – the non-threaded center component has a smaller diameter than the actual diameter.
Stud Bolts Coating Materials
To avoid galvanic corrosion, the material of the nut and washer must be suitable for the stud-bolt material. To improve corrosion resistance, stud bolts are sometimes coated. The following are examples of common coating materials:
- Electro zinc plating
- Electro cadmium plating
- Hot dip galvanizing
- PTFE Coating
- Phosphate coating
- Electro less nickel plating
- Zinc-nickel coating
- Aluminum coating
- Silver coating
- Zinc/Nickel by electrode position
- Dacromet
- Geomet
- XYLAN 1070
- XYLAN 1024
- Xylar 1
Stud Bolt Threads Types
Depending on the application, stud bolts utilize a range of screw thread profiles. The following are some of the most popular thread profiles:
- ISO metric thread
- ACME thread
- UNC thread
- UNF thread
- UN thread
- WHITWORTH thread
Stud Bolts Standards
| ASME B18.2.1 | 3/8 inch to 3 inch |
| BS 1769 | ½ inch to 2 inch |
| ASME B18.2.3.6M | M12 to M36 |
| ASME B18.2.3.7M | M16 to M36 |
| DIN 6914 | M12 to M36 |
| ISO 7412 | M12 to M36 |
| UNI 5712 | M12 to M36 |
| DIN-EN 14399-4 | M12 to M36 |
Stud Bolts Material Grades:
| Nickel Alloy Steel | ASTM/ASME B/SB 564 UNS N02200(NICKEL 200), UNS N04400, (MONEL 400), UNS N08825( INCOLOY 825), UNS N06600(INCONEL 600), UNS N06601(INCONEL 601), UNS N06625(INCONEL 625), UNS N10276(HASTELLOY C276) ASTM/ASME B/SB160 UNS N02201(NICKEL 201), ASTM B/SB472 UNS N08020(Alloy 20) |
| Stainless Steel | ASTM/ASME A/SA 182 F304, 304L, 304H, 310H, 316, 316H, 316L, 316Ti, 317, 317L, 321, 321H, 347, 347H, 904L |
| Duplex and Super Duplex | ASTM/ASME A/SA 182 F44, F45, F51, F53, F55, F60, F61, S31803, S32205, S32550, S31254, SMO254, S32750, S32760, S32950 |