S-97345A520 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and mechanical stress
• Precise Class 3A thread fit guarantees secure fastening with minimal play and consistent engagement
• Knurled head texture provides enhanced grip for manual adjustments and reduces slippage during installation
• Coarse 10-24 UNC threads enable quick assembly and disassembly, reducing installation time in production lines
• 1-inch shoulder length with tight tolerances offers stable alignment for rotating components like gears and pulleys
• Compliance with RoHS 3 and REACH ensures environmental safety and meets international regulatory standards

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in industrial applications where precision alignment and corrosion resistance are paramount. The Class 3A thread fit and coarse 10-24 UNC threads provide reliable fastening in high-vibration environments, such as machinery assemblies and automotive systems, reducing the risk of loosening. The 1-inch shoulder with minimal diameter tolerance ensures exact positioning for bearings, linkages, and rotating parts, minimizing wear and extending equipment lifespan. With a Rockwell B79 hardness and 70,000 psi tensile strength, it withstands mechanical stresses in demanding sectors like aerospace and marine engineering, while the hex drive socket head allows for easy installation in confined spaces. Its RoHS 3 and REACH compliance further supports sustainable manufacturing practices, making it a trusted choice for B2B procurement in precision-driven industries.

Specification Summary & Compliance

This shoulder screw adheres to ASME B18.3 standards, ensuring dimensional accuracy with a Class 3A thread fit for precise engagement. The shoulder diameter tolerance ranges from -0.004" to -0.002", and shoulder length tolerance from -0.005" to 0.005", guaranteeing consistent performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), meeting environmental and safety regulations for industrial use.