S-91251A668 7/16"-14 x 7/8" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
• Superior corrosion resistance from the black-oxide finish extends service life in demanding industrial environments.
• Precise Class 3A thread fit provides consistent engagement and vibration resistance, minimizing loosening in critical assemblies.
• High hardness rating (Rockwell C37) enhances wear resistance and durability for repeated use in heavy-duty applications.
• Fully threaded design allows for maximum adjustability and uniform clamping force along the entire length.
• Standard hex socket drive enables easy installation with common tools, reducing assembly time and labor costs.
• Compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards for industrial components.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this 7/16"-14 UNC socket head cap screw combines black-oxide alloy steel construction with ASTM A574 specifications to address common engineering challenges like vibration-induced loosening and corrosion. The coarse UNC threads and Class 3A fit provide rapid assembly and secure fastening in machinery, automotive, and construction equipment, where high tensile strength and durability are critical. Its fully threaded profile ensures even load distribution, reducing stress concentrations and enhancing joint integrity in heavy-load applications.

Specification Summary & Compliance

This socket head cap screw features a 7/16"-14 UNC coarse thread with Class 3A precision fit, manufactured to ASTM A574 standards for consistent quality. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety adherence for industrial use.