S-98957A124 5/16"-18 x 2.5 ft. ASTM A193 Threaded Rods

Threaded Rods

1391FA00439 Threaded Rods
1391FA00439 Threaded Rods

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

Part No.
Part No. 1391FA00439
Equivalent to mcmaster :
98957A124

Basic Information

System of Measurement Inch
Specifications Met ASTM A193
RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/10/2022, 224 SVHC) Compliant

Dimension Parameters

Length 2.5 ft.

Thread Parameters

Thread Type UNC
Thread Size 5/16"-18
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
In Stock
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Key Features & Benefits at a Glance

  • Exceptional Tensile Strength: Withstands up to 125,000 psi, ensuring reliable performance in high-stress industrial applications without failure.
  • Superior Hardness & Durability: Rockwell C35 hardness provides excellent resistance to wear, deformation, and impact in demanding environments.
  • Precision Threading for Secure Fastening: Fully threaded UNC coarse 5/16"-18 design with Class 2A fit ensures easy installation and consistent, vibration-resistant connections.
  • High-Temperature & Heavy-Duty Compliance: Manufactured to ASTM A193 and Grade B7 standards, ideal for elevated temperature services and structural fastening.
  • Environmental & Safety Compliance: Meets RoHS 3 and REACH regulations, guaranteeing safe, eco-friendly use in global industrial supply chains.
  • Versatile Right-Hand Thread Design: Simplifies assembly with standard threading, compatible with common nuts and fittings for streamlined operations.
  • Optimal Length for Flexibility: 2.5 ft. fully threaded rod allows for customizable cutting and application across construction and machinery setups.

Professional Applications & Engineering Value

This Grade B7 steel threaded rod is engineered to address critical challenges in heavy-duty and high-temperature environments, such as pressure vessel systems, structural bracing, and industrial machinery. The fully threaded UNC coarse thread design, combined with Class 2A thread fit, ensures precise alignment and reduces the risk of cross-threading during assembly, enhancing operational efficiency. Its 125,000 psi tensile strength and Rockwell C35 hardness provide resilience against dynamic loads and corrosion, making it a dependable choice for applications requiring long-term reliability under stress. By integrating ASTM A193 compliance, this rod delivers consistent performance in construction, oil and gas, and manufacturing sectors, where failure is not an option.

Specification Summary & Compliance

This threaded rod adheres to Class 2A thread fit for external threads, ensuring dimensional accuracy per UNC standards. It meets ASTM A193 Grade B7 manufacturing specifications, with a tensile strength of 125,000 psi and hardness of Rockwell C35. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it supports sustainable and safe industrial use.

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