S-98750A422 7/8"-9 x 6 1/2" ASTM A193 Threaded Rods

Threaded Rods

1391FA00220 Threaded Rods
1391FA00220 Threaded Rods

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

Part No.
Part No. 1391FA00220
Equivalent to mcmaster :
98750A422

Basic Information

System of Measurement Inch
Specifications Met ASTM A193

Dimension Parameters

Length 6 1/2"

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 load-bearing capacity with 125,000 psi tensile strength for reliable performance in high-stress applications
  • Superior durability and wear resistance thanks to Rockwell C35 hardness, extending service life in demanding environments
  • Precision thread engagement with Class 2A thread fit ensuring consistent assembly and reduced risk of cross-threading
  • Optimized for quick installation through right-hand coarse UNC threading, minimizing assembly time in industrial settings
  • Full-length threading versatility allowing flexible positioning and secure fastening along the entire 6 1/2" length
  • Guaranteed material quality with ASTM Grade B7 steel construction meeting rigorous ASTM A193 standards
  • Reliable corrosion resistance from high-grade steel composition, maintaining integrity in various operating conditions

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this 7/8"-9 UNC threaded rod delivers critical performance where high tensile strength and thread reliability are paramount. The ASTM Grade B7 steel construction provides exceptional resistance to deformation under heavy loads, making it ideal for structural anchoring, machinery assembly, and pressure vessel systems. The fully threaded design with coarse UNC threading enables versatile positioning and secure fastening in applications requiring adjustable components. With Class 2A thread fit and right-hand threading, installation becomes more efficient while maintaining precise alignment in industrial fastening systems. This rod effectively addresses common engineering challenges including vibration loosening, thread stripping, and material fatigue in high-temperature or high-pressure environments.

Specification Summary & Compliance

This threaded rod features 6 1/2" length with fully threaded 7/8"-9 UNC coarse threads and Class 2A thread fit per standard inch measurement system requirements. Manufacturing complies with ASTM A193 specification for high-temperature service, with material certification to ASTM Grade B7 standards. The product maintains dimensional accuracy with proper thread form and spacing according to UNC coarse thread standards, ensuring compatibility with standard industrial nuts and components.

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