S-91251A416 1"-14 x 2" 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.
• Precision Class 3A thread fit provides superior engagement and vibration resistance in critical assemblies.
• Black-oxide surface treatment on alloy steel offers enhanced corrosion resistance for extended service life in harsh environments.
• Fine UNRF thread design allows for finer adjustment and improved clamping force distribution.
• Fully threaded shank maximizes grip length and load distribution across the entire fastener.
• Hex socket drive with 3/4" size enables high-torque installation and removal without stripping.
• Compliance with ASTM A574, RoHS 3, and REACH ensures material consistency and environmental safety for global industrial use.

Professional Applications & Engineering Value

Engineered for demanding applications, this socket head cap screw combines black-oxide alloy steel with a Class 3A UNRF fine thread to address common industrial challenges like vibration loosening and corrosion. The high tensile strength and Rockwell C37 hardness make it ideal for heavy machinery, automotive assemblies, and precision equipment where reliable fastening is critical. Its fully threaded design ensures uniform stress distribution, while the hex drive facilitates secure installation in confined spaces, reducing assembly time and maintenance costs in industrial applications.

Specification Summary & Compliance

This product features a 1"-14 UNRF fine thread with Class 3A fit for precise tolerance, manufactured per ASTM A574 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial use.