S-91251A677 7/16"-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 in demanding applications.
• Class 3A thread fit provides superior precision and tighter tolerances for secure, vibration-resistant assemblies in critical machinery and equipment.
• Black-oxide coating on alloy steel enhances corrosion resistance, extending service life in harsh industrial environments without compromising structural integrity.
• Hex socket drive design allows for easy installation and removal with standard tools, minimizing assembly time and improving workflow efficiency.
• Coarse UNC threading facilitates quick engagement and disassembly, ideal for applications requiring frequent maintenance or adjustments.
• Partially threaded shank offers optimal grip and clamping force distribution, preventing loosening in dynamic or high-vibration settings.
• Rockwell C37 hardness ensures durability and wear resistance, maintaining thread integrity over repeated use cycles.

Professional Applications & Engineering Value

Engineered for precision and reliability, these Black-Oxide Alloy Steel Socket Head Cap Screws address common industrial challenges such as vibration-induced loosening and corrosion in heavy machinery, automotive assemblies, and construction equipment. The 7/16"-14 UNC coarse thread design ensures rapid installation and robust holding power, while the hex drive allows for high-torque application without slippage. Made from high-strength alloy steel and treated with a protective black-oxide finish, these screws resist rust and wear, making them suitable for outdoor or humid environments. Their compliance with ASTM A574 standards guarantees consistent quality, supporting long-term performance in industrial fastening systems where safety and durability are paramount.

Specification Summary & Compliance

This socket head cap screw features precise Class 3A thread fit per UNC standards, ensuring accurate engagement and minimal backlash. Dimensions include a 2" length, 3/8" hex drive, and partially threaded design for optimal functionality. Manufactured in accordance with ASTM A574 specifications, it meets rigorous mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for global industrial use.