S-98758A518 1/2"-13 x 4" ASTM A193 Threaded Rods

Threaded Rods

1391FA00391 Threaded Rods
1391FA00391 Threaded Rods

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

Part No.
Part No. 1391FA00391
Equivalent to mcmaster :
98758A518

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 4"

Thread Parameters

Thread Type UNC
Thread Size 1/2"-13
Threading Fully Threaded
Thread Direction Right Hand
Thread Spacing Coarse
Thread Fit (External) Class 2A

Material & Strength Parameters

Material Black-Oxide 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 corrosion resistance from the black-oxide steel finish prolongs service life in harsh industrial environments.
  • Full threading along the 4" length provides maximum adjustability and holding power across the entire rod.
  • Coarse 1/2"-13 UNC thread spacing allows for quicker assembly and reduced cross-threading in demanding conditions.
  • Class 2A thread fit offers optimal clearance for easy installation while maintaining secure fastening integrity.
  • High hardness (Rockwell C35) enhances wear resistance, ensuring durability under repeated load cycles.
  • Compliance with ASTM A193, RoHS 3, and REACH guarantees material quality and environmental safety for global industrial use.

Professional Applications & Engineering Value

This Grade B7 threaded rod is engineered to address critical challenges in heavy-duty applications such as pressure vessels, structural anchoring, and machinery assembly. The black-oxide steel construction provides a protective layer against oxidation and abrasion, extending component life in corrosive settings. With its fully threaded design and 1/2"-13 UNC coarse thread, it ensures rapid installation and robust load distribution, minimizing downtime. The high tensile strength and Rockwell C35 hardness make it ideal for sustaining dynamic loads and vibrations, offering engineers a dependable solution for projects requiring ASTM A193 compliance and long-term reliability.

Specification Summary & Compliance

This threaded rod adheres to precise dimensional standards, including Class 2A thread fit and UNC coarse threading, ensuring consistent performance. It meets ASTM A193 specifications for high-temperature service and is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications.

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