S-90128A131 10-32 x 5/16" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Class 3A thread fit provides superior precision and tight tolerances for secure, vibration-resistant assemblies in machinery and equipment.
• Zinc-plated alloy steel construction offers enhanced corrosion resistance, extending service life in harsh or outdoor environments.
• Fine UNF threads allow for smoother engagement and improved load distribution, ideal for precision engineering and fine-adjustment needs.
• Hex socket drive design enables easy installation with standard tools, minimizing stripping and ensuring consistent torque application.
• Full threading along the 5/16" length maximizes grip and flexibility in various mounting scenarios, from compact assemblies to adjustable fixtures.
• Compliance with ASTM A574, RoHS 3, and REACH guarantees material quality and environmental safety, meeting global regulatory standards for industrial use.

Professional Applications & Engineering Value

This 10-32 UNF Class 3A socket head cap screw is engineered to address common challenges in precision-driven industries, such as machinery manufacturing, automotive systems, and electronic enclosures. The zinc-plated alloy steel material combats corrosion and wear, while the fine thread design ensures secure fastening in applications requiring minimal backlash and high vibrational stability. With a Rockwell C37 hardness and 170,000 psi tensile strength, it withstands heavy loads and repetitive stress, reducing maintenance needs. The hex drive socket head allows for efficient installation in confined spaces, making it a reliable choice for assembly lines and equipment that demand durability and consistent performance under demanding conditions.

Specification Summary & Compliance

This socket head cap screw features a 10-32 UNF fine thread with Class 3A fit for high precision, and is manufactured to ASTM A574 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity. Dimensions include a 5/16" length, 5/32" hex drive, and right-hand thread direction, all measured in the inch system for consistent application across standard industrial tools and components.