S-98750A423 7/8"-9 x 7" ASTM A193 Threaded Rods

Threaded Rods

1391FA00221 Threaded Rods
1391FA00221 Threaded Rods

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

Part No.
Part No. 1391FA00221
Equivalent to mcmaster :
98750A423

Basic Information

System of Measurement Inch
Specifications Met ASTM A193

Dimension Parameters

Length 7"

Thread Parameters

Thread Type UNC
Thread Size 7/8"-9
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 under high-stress conditions, reducing the risk of fastener failure in critical applications.
  • Superior material durability with ASTM Grade B7 steel and Rockwell C35 hardness provides excellent resistance to wear, deformation, and harsh industrial environments.
  • Full threading along the 7-inch length offers versatile installation and adjustment flexibility, allowing for secure fastening at any point along the rod.
  • Precision Class 2A thread fit with UNC coarse spacing ensures easy assembly, reduced cross-threading risk, and consistent performance in high-vibration settings.
  • Right-hand thread direction simplifies installation using standard tools, improving efficiency and reducing labor time in assembly lines.
  • Compliance with ASTM A193 specifications guarantees material quality and manufacturing consistency, meeting rigorous industrial and engineering standards.

Professional Applications & Engineering Value

This 7/8"-9 UNC threaded rod is engineered from ASTM Grade B7 steel to address common industrial challenges such as structural instability, thermal cycling, and mechanical stress. The fully threaded design and coarse thread spacing provide superior grip and load distribution, making it ideal for heavy-duty applications like construction anchoring, machinery assembly, and pressure vessel systems. Its high tensile strength and Rockwell C35 hardness ensure long-term reliability in environments subject to corrosion, high temperatures, and dynamic loads, reducing maintenance needs and downtime. By meeting ASTM A193 specifications, this rod delivers consistent performance for engineers and procurement specialists requiring dependable steel fasteners that comply with industry norms.

Specification Summary & Compliance

This threaded rod features a 7/8"-9 UNC thread size with Class 2A thread fit for precise dimensional accuracy and easy assembly. It is manufactured from ASTM Grade B7 steel, providing a tensile strength of 125,000 psi and Rockwell C35 hardness. The product complies with ASTM A193 specifications, ensuring it meets industry standards for material quality and performance in high-strength applications. Additionally, it adheres to common regulatory requirements such as RoHS and REACH for environmental safety.

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