S-98957A749 1 7/8"-8 x 6 ft. ASTM A193 Threaded Rods

Threaded Rods

1391FA00579 Threaded Rods
1391FA00579 Threaded Rods

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

Part No.
Part No. 1391FA00579
Equivalent to mcmaster :
98957A749

Basic Information

System of Measurement Inch
Specifications Met ASTM A193
RoHS RoHS 3 (2015/863/EU) Compliant

Dimension Parameters

Length 6 ft.

Thread Parameters

Thread Type UN
Thread Size 1 7/8"-8
Threading Fully Threaded
Thread Direction Right Hand
Thread Spacing Fine
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
  • Superior hardness rating (Rockwell C35) provides excellent wear resistance and durability for extended service life in demanding environments
  • Precision Class 2A thread fit guarantees smooth assembly and optimal engagement with mating components, minimizing installation time
  • Full-length threading offers maximum flexibility for positioning nuts and other components along the entire 6-foot length
  • ASTM A193 Grade B7 compliance ensures material quality and performance consistency for critical industrial applications
  • RoHS 3 compliance meets environmental regulations while maintaining high-performance standards
  • UN fine threading provides superior vibration resistance and better sealing capabilities compared to coarse threads

Professional Applications & Engineering Value

This high-strength threaded rod delivers exceptional engineering value in demanding applications where reliability is paramount. The ASTM Grade B7 steel construction combined with 125,000 PSI tensile strength makes it ideal for pressure vessel systems, structural supports, and heavy machinery where thermal and mechanical stresses are significant. The fully threaded design with UN fine threading allows for precise adjustment and secure fastening in vibration-prone environments. The Class 2A thread fit ensures compatibility with standard nuts and components while maintaining the dimensional accuracy required for industrial assembly. These threaded rods are particularly valuable in petrochemical, power generation, and construction applications where failure is not an option and compliance with ASTM A193 specifications is mandatory for safety and performance assurance.

Specification Summary & Compliance

This 1 7/8"-8 threaded rod features precision Class 2A thread fit with UN fine threading and right-hand thread direction, manufactured to exacting dimensional standards. The product complies with ASTM A193 Grade B7 specifications for high-temperature service and maintains 125,000 PSI tensile strength with Rockwell C35 hardness. Environmental compliance is assured through RoHS 3 (2015/863/EU) compliance, meeting the latest restrictions on hazardous substances while delivering optimal performance in industrial fastening applications.

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