S-98758A426 5/16"-18 x 4" ASTM A193 Threaded Rods

Threaded Rods

1391FA00377 Threaded Rods
1391FA00377 Threaded Rods

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

Part No.
Part No. 1391FA00377
Equivalent to mcmaster :
98758A426

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 5/16"-18
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.
  • Durable black-oxide steel coating provides enhanced corrosion resistance, extending service life in harsh industrial environments.
  • Precision Class 2A thread fit guarantees smooth assembly and secure fastening, minimizing installation time and improving efficiency.
  • Fully threaded, right-hand UNC coarse design offers versatile engagement and easy adjustment, suitable for a wide range of mounting and anchoring tasks.
  • High hardness (Rockwell C35) resists wear and deformation, maintaining thread integrity over repeated use.
  • Compliance with ASTM A193 and Grade B7 standards ensures consistent quality and reliability for critical engineering applications.
  • RoHS 3 and REACH compliant meets environmental regulations, supporting sustainable and safe manufacturing practices.

Professional Applications & Engineering Value

This 5/16"-18 UNC threaded rod is engineered from ASTM Grade B7 black-oxide steel to address common industrial challenges such as vibration loosening and corrosion in demanding settings. The fully threaded, coarse thread design enables quick adjustments and strong grip in construction, machinery assembly, and structural supports, while the high tensile strength and Rockwell C35 hardness prevent stripping under heavy loads. Ideal for use in industrial fastening applications, it reduces maintenance needs and downtime by offering a robust, RoHS and REACH compliant solution that withstands extreme conditions without compromising safety or performance.

Specification Summary & Compliance

This product features a Class 2A thread fit with UNC coarse threading and adheres to ASTM A193 and Grade B7 manufacturing standards. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and precise dimensional accuracy for reliable industrial use.

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