S-97381A304 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Precision alignment and reduced wear with Class 3A thread fit and standard shoulder fit for consistent assembly in high-tolerance applications.
• Lightweight yet durable construction using 6061 Aluminum, ideal for applications where weight reduction is critical without sacrificing structural integrity.
• High tensile strength of 40,000 psi ensures reliable performance under mechanical stress, suitable for dynamic load conditions.
• Secure and non-slip installation with a knurled head and hex drive socket, allowing for firm tool grip and reduced cam-out during tightening.
• Broad industrial compliance meeting ASME B18.3 standards, RoHS 3, and REACH regulations, ensuring safety and environmental responsibility.
• Versatile coarse UNC threading provides quick assembly and disassembly, reducing installation time in maintenance and production lines.
• Accurate shoulder dimensions with tight tolerances (e.g., shoulder diameter tolerance of -0.004" to -0.002") for precise component spacing and rotation.

Professional Applications & Engineering Value

This 10-24 UNC thread shoulder screw is engineered to address common industrial challenges such as misalignment and component wear in machinery. The 6061 Aluminum construction offers an optimal balance of strength and lightweight properties, reducing overall system weight while maintaining 40,000 psi tensile strength. The Class 3A thread fit and precise shoulder dimensions ensure accurate positioning in assemblies like pivots, gears, and linkages, minimizing vibration-induced failures. With a knurled socket head and hex drive, it enables secure fastening in confined spaces, making it ideal for precision engineering applications in automotive, aerospace, and electronics manufacturing. Its compliance with ASME B18.3 and environmental standards guarantees reliability and sustainability in demanding environments.

Specification Summary & Compliance

This shoulder screw adheres to Class 3A thread fit and UNC coarse thread standards, with shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005" for high precision. It conforms to ASME B18.3 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) under exemption 6(b)-II for lead in aluminum alloys, as well as REACH (EC 1907/2006) regulations, ensuring it meets industry and environmental requirements for safe use.