S-98750A685 1 1/4"-8 x 6" ASTM A193 Threaded Rods

Threaded Rods

1391FA00311 Threaded Rods
1391FA00311 Threaded Rods

Image may differ from product. See technical specification for details.

Part No.
Part No. 1391FA00311
Equivalent to mcmaster :
98750A685

Basic Information

System of Measurement Inch
Specifications Met ASTM A193

Dimension Parameters

Length 6"

Thread Parameters

Thread Type UN
Thread Size 1 1/4"-8
Threading Fully Threaded
Thread Direction Right Hand
Thread Spacing Coarse
Thread Fit (External) Class 2A

Material & Strength Parameters

Material Steel
Fastener Strength Grade/Class ASTM Grade B7
Tensile Strength 125000 psi
Hardness Rockwell C35
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Exceptional tensile strength of 125,000 PSI ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
  • High hardness (Rockwell C35) provides superior resistance to wear and deformation, extending service life in demanding environments.
  • Fully threaded design allows for maximum adjustability and secure fastening along the entire 6" length, offering versatile installation options.
  • Coarse UN threads with Class 2A fit enable quick and easy assembly while maintaining consistent engagement and vibration resistance.
  • Right-hand threading ensures compatibility with standard industrial components, simplifying integration and maintenance.
  • Manufactured from ASTM Grade B7 steel guarantees consistent material properties and durability under high-temperature and high-pressure conditions.
  • Compliance with ASTM A193 specifications assures adherence to industry standards for critical service applications, providing peace of mind for engineers.

Professional Applications & Engineering Value

This 1 1/4"-8 threaded rod is engineered to address critical challenges in industrial settings where high tensile strength and durability are paramount. Constructed from ASTM Grade B7 steel, it excels in applications involving elevated temperatures and pressures, such as pressure vessel assemblies, structural bracing, and heavy machinery fastening. The fully threaded, coarse UN thread design facilitates rapid installation and robust load distribution, minimizing stress concentration points. Its right-hand thread direction and Class 2A thread fit ensure seamless compatibility with standard nuts and fixtures, reducing assembly time and enhancing operational efficiency. Ideal for use in industrial fastening solutions within oil and gas, construction, and manufacturing sectors, this rod provides reliable performance where failure is not an option.

Specification Summary & Compliance

This threaded rod features precise Class 2A thread fit for consistent engagement and meets UN coarse thread standards (1 1/4"-8). It is manufactured in compliance with ASTM A193 specifications for high-temperature service, ensuring material integrity and performance. The product adheres to industry-recognized standards for dimensional accuracy and mechanical properties, including tensile strength and hardness, providing assurance for critical engineering applications.

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