S-97345A355 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 mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance in high-stress applications.
• Precise Class 3A thread fit ensures secure, vibration-resistant assemblies with minimal backlash and consistent engagement.
• Secure and efficient installation facilitated by the knurled socket head and 3/32" hex drive, preventing tool slippage.
• Robust shoulder design with controlled diameter and length tolerances for accurate component alignment and spacing.
• Broad compatibility with 8-32 UNC coarse threads, making it suitable for a wide range of standard industrial components.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets.

Professional Applications & Engineering Value

This 316 Stainless Steel Shoulder Screw is engineered to address critical challenges in precision assembly and machinery. The UNC coarse thread and Class 3A fit provide a tight, reliable connection that resists loosening under vibration, common in automated equipment and rotating assemblies. The knurled socket head with a 3/32" hex drive ensures tool engagement is maintained during high-torque installation, reducing the risk of damage in confined spaces. Made from 316 stainless steel, it offers excellent resistance to chemicals and moisture, making it ideal for applications in marine, chemical processing, and food manufacturing industries where durability and corrosion resistance are paramount. The integral shoulder acts as a precise pivot, bearing, or spacer, maintaining alignment in linkages, gears, and other mechanical systems, thereby reducing wear and extending the lifecycle of the assembly.

Specification Summary & Compliance

This shoulder screw features an 8-32 UNC thread with a Class 3A precision fit for high-accuracy assemblies. Key dimensional tolerances include a shoulder diameter of 7/32" (tolerance: -0.004" to -0.002") and shoulder length of 15/32" (tolerance: -0.005" to 0.005"). The material meets Rockwell B79 hardness and provides 70,000 psi tensile strength and 35,000 psi minimum shear strength. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of restricted hazardous substances and suitable for industrial use worldwide.