S-90044A153 3/8"-16 x 5" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide finish, ideal for harsh industrial environments and extended service life.
• 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 consistent, secure mating with nuts and tapped holes, minimizing assembly issues and rework.
• Fully threaded design offers maximum grip length and uniform clamping force along the entire shank for versatile applications.
• High hardness (Rockwell C37) enhances wear resistance and durability, maintaining integrity through repeated use.
• Coarse UNC threading allows for faster installation and reduced cross-threading risks, improving assembly efficiency.
• Compliance with ASTM A574, RoHS 3, and REACH guarantees material quality and environmental safety, meeting strict industry regulations.

Professional Applications & Engineering Value

This Black-Oxide Alloy Steel Socket Head Cap Screw is engineered to address critical challenges in heavy machinery, automotive, and construction assemblies. The high tensile strength (170,000 psi) and Rockwell C37 hardness provide robust resistance to dynamic loads and vibrations, preventing loosening and fatigue failures. Its UNC coarse thread and Class 3A fit ensure precise engagement in demanding applications, reducing installation time and enhancing joint reliability. The black-oxide surface treatment offers added protection against corrosion, making it suitable for outdoor or corrosive environments. Ideal for industrial fastening where durability, precision, and compliance with standards like ASTM A574 are paramount, this screw delivers consistent performance in high-stress scenarios.

Specification Summary & Compliance

This socket head cap screw features a 3/8"-16 UNC coarse thread with a Class 3A thread fit for high precision and interchangeability. It adheres to ASTM A574 specifications for material and manufacturing quality, ensuring consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental standards for global industrial use.