S-97345A354 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh industrial environments and extended service life.
• Exceptional thread reliability with Class 3A fit, ensuring precise engagement and reducing the risk of loosening under vibration.
• Enhanced installation grip from the knurled hex socket head, allowing for secure tool engagement and easier assembly in tight spaces.
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for demanding applications and structural integrity.
• Accurate shoulder positioning with controlled diameter and length tolerances, providing consistent alignment for components like gears and pulleys.
• Broad industrial compliance meeting RoHS 3 and REACH regulations, ensuring safety and environmental standards for global supply chains.
• Optimized for coarse threading with UNC 8-32 specification, enabling faster assembly and improved performance in various materials.

Professional Applications & Engineering Value

This 8-32 UNC shoulder screw is engineered to address critical challenges in precision assembly, where misalignment and corrosion can lead to equipment failure. The 316 Stainless Steel material provides excellent resistance to chemicals and moisture, making it suitable for marine, chemical processing, and food industry applications. The hex socket head with knurled texture ensures a firm grip during installation, reducing slippage and damage in high-torque scenarios. With a Class 3A thread fit and precise shoulder dimensions, it offers reliable alignment for rotating parts like bearings and linkages, minimizing wear and maintenance costs. Its high tensile and shear strength supports heavy-load operations, while compliance with RoHS and REACH standards ensures it meets rigorous industrial and environmental requirements, providing long-term value in automated machinery and precision engineering projects.

Specification Summary & Compliance

This shoulder screw adheres to UNC 8-32 coarse thread standards with a Class 3A thread fit for high precision. Key dimensional tolerances include a shoulder diameter of 7/32" with a tolerance of -0.004" to -0.002" and a shoulder length of 7/16" with a tolerance of -0.005" to 0.005". Manufactured from 316 Stainless Steel with a hardness of Rockwell B79, it meets mechanical properties of 70,000 psi tensile strength and 35,000 psi minimum shear strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for industrial and international use.