S-97381A208 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Lightweight yet durable construction from 6061 aluminum, ideal for weight-sensitive applications without sacrificing structural integrity.
• Precise alignment and smooth rotation with a 1" shoulder length and standard fit, minimizing component wear in assemblies.
• High tensile and shear resistance (40,000 psi tensile, 20,000 psi min shear) for reliable performance under mechanical stress.
• Secure, tool-friendly installation using a 3/32" hex drive and knurled head for enhanced grip and reduced slippage.
• Consistent thread engagement with Class 3A fit and 8-32 UNC coarse threads, ensuring quick assembly and vibration resistance.
• Compliance with environmental standards including RoHS 3 and REACH, supporting sustainable and safe industrial use.
• Versatile right-hand threading for standard applications, compatible with common UNC components.

Professional Applications & Engineering Value

These 6061 aluminum shoulder screws are engineered to address common industrial challenges such as misalignment and component wear in machinery. The 1" precision shoulder provides a stable bearing surface, allowing for accurate positioning of moving parts like gears or pulleys, which reduces friction and extends equipment life. With a Class 3A thread fit and UNC coarse threads, they offer rapid assembly and robust holding power in high-vibration environments, from automated systems to electronic enclosures. The knurled head and hex drive design ensure easy installation with standard tools, enhancing productivity in assembly lines. Made from lightweight aluminum, these screws are perfect for applications where weight reduction is critical without compromising on the 40,000 psi tensile strength, making them a reliable choice for aerospace, automotive, and precision engineering sectors.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerances and UNC coarse threading. The shoulder diameter is 3/16" with a tolerance of -0.004" to -0.002", and the shoulder length is 1" with a tolerance of -0.005" to 0.005", ensuring consistent performance. It complies with RoHS 3 (2015/863/EU) under exemption 6(b)-II for lead in aluminum alloys and REACH (EC 1907/2006), confirming environmental and safety standards for industrial use.