A Threaded Rod, also known as a Stud, is a long, metal fastener, that is threaded on both ends. Depending upon the application, the threading may be partial or run the entire length of the rod. Threaded Rod is designed to withstand pressure, tension and vibration, and used in a wide variety of applications including:
- Manufacturing (Automotive)
- Piping/Flange Connections (Stud Bolts)
… and comes in a variety of lengths, grades, materials and thread pitches.
Threaded rod is classified by the American Society for Testing and Materials International by grade, material and strength. Some standardized ASTM classifications include:
- ASTM A307 Grade 2: Threaded rod made from low carbon steel.
- ASTM A307 Grade 5: Stronger and more heat resistant; medium yield and tensile strength
- ASTM A193 Grade B7: High strength, excellent heat resistance
- ASTM A193 Grade B16: High temperature service
- ASTM A193 Grade B7M: High tensile alloy steel
- ASTM A329 Grade L7: Low temperature performance.
- ASTM A193 Grade B8: Made from 18-8 stainless steel and has good chemical resistance.
- ASTM A193 Grade B8M: Corrosion resistant 316 stainless steel fasteners – high tensile, high temperature