S-92610A581 5/16"-18 x 3/4" ASTM A574 Torx Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional strength and durability with 180,000 psi tensile strength and Rockwell C39 hardness, ideal for high-stress industrial applications.
• Superior torque transmission and reduced cam-out thanks to the Torx Plus IP45 drive, ensuring secure and efficient fastener installation.
• Precise and reliable thread fit with UNC Class 3A coarse threads, providing excellent vibration resistance and joint integrity.
• Enhanced corrosion resistance from the black-oxide finish on alloy steel, extending the screw's service life in demanding environments.
• Consistent quality and performance guaranteed by compliance with the rigorous ASTM A574 specification for socket head cap screws.
• Safe for various applications as it meets RoHS 3 and REACH environmental standards, ensuring regulatory compliance.
• Fully threaded design offers maximum grip and holding power along the entire 3/4" length for versatile fastening needs.

Professional Applications & Engineering Value

Engineered for demanding industrial and mechanical assemblies, this Black-Oxide Alloy Steel Socket Head Cap Screw delivers critical performance where failure is not an option. The combination of high tensile strength (180,000 psi) and Rockwell C39 hardness ensures it can withstand extreme loads and shocks, making it perfect for heavy machinery, automotive systems, and precision equipment. The Torx Plus IP45 drive minimizes tool slippage and allows for higher torque application compared to standard drives, reducing installation time and preventing damage to the fastener head. Its UNC Class 3A coarse threads provide a secure, precise fit that resists loosening under vibration, a common challenge in dynamic industrial environments. This screw is an essential component for engineers and procurement specialists seeking reliable, high-performance industrial fasteners that enhance assembly integrity and reduce maintenance costs.

Specification Summary & Compliance

This socket head cap screw features precise inch system measurements with a thread size of 5/16"-18 and a length of 3/4". It adheres to UNC Class 3A thread fit standards for superior dimensional accuracy and is fully threaded for consistent engagement. Manufactured in compliance with ASTM A574 for material and mechanical properties, it also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial supply chains.