S-98750A621 1 1/8"-8 x 6" ASTM A193 Threaded Rods

Threaded Rods

1391FA00308 Threaded Rods
1391FA00308 Threaded Rods

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

Part No.
Part No. 1391FA00308
Equivalent to mcmaster :
98750A621

Basic Information

System of Measurement Inch
Specifications Met ASTM A193
RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (07/08/2021, 219 SVHC) Compliant

Dimension Parameters

Length 6"

Thread Parameters

Thread Type UN
Thread Size 1 1/8"-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 rating (Rockwell C35) provides superior wear resistance and durability for extended service life in demanding environments.
  • Fully threaded design offers maximum adjustability and holding power along the entire 6-inch length for versatile installation and assembly.
  • Coarse UN thread with Class 2A fit enables faster assembly and easier engagement, even in challenging conditions or with minor debris.
  • Manufactured from ASTM Grade B7 steel to meet ASTM A193 specifications, guaranteeing consistent quality and performance for critical industrial uses.
  • Compliance with RoHS 3 and REACH ensures environmental safety and regulatory adherence, making it suitable for global supply chains and sensitive applications.
  • Right-hand threading provides standard, intuitive installation that aligns with common tools and practices, improving efficiency on the job site.

Professional Applications & Engineering Value

This 1 1/8"-8 threaded rod made from ASTM Grade B7 steel is engineered to address critical challenges in heavy-duty industrial settings. Its fully threaded construction and coarse thread spacing allow for robust connections in structural frameworks, machinery anchoring, and pressure vessel assemblies, where vibration resistance and load distribution are paramount. The high tensile strength and Rockwell C35 hardness mitigate issues like elongation under load and thread stripping, common in less durable rods. By conforming to ASTM A193 and featuring a Class 2A thread fit, it ensures precise dimensional accuracy and reliable performance in applications such as construction, oil and gas, and manufacturing, reducing downtime and maintenance costs.

Specification Summary & Compliance

This threaded rod adheres to precise dimensional standards, including a Class 2A thread fit for external threads and UN coarse thread type with a size of 1 1/8"-8. It is manufactured in compliance with ASTM A193 for ASTM Grade B7 material, ensuring high tensile strength and hardness. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industrial applications.

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