S-97345A319 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 strength and 35,000 psi shear strength for reliable performance under high-stress conditions
• Precise thread engagement with Class 3A fit and 8-32 UNC coarse threads, ensuring secure fastening and vibration resistance
• Easy installation and removal via the 3/32" hex socket drive and knurled head, providing excellent grip and torque application
• Accurate shoulder positioning with a 3/16" diameter and controlled tolerances, enabling precise component alignment in assemblies
• Compliance with global standards including RoHS 3 and REACH, ensuring environmental safety and suitability for regulated industries
• Durable material hardness rated at Rockwell B79, resisting wear and deformation during repeated use

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and corrosive environments. The UNC coarse threads with Class 3A fit provide rapid assembly and high clamping force, reducing the risk of thread stripping in high-vibration applications like robotics and conveyor systems. The knurled socket head allows for secure tool engagement, minimizing slippage during torque-intensive operations. With a corrosion-resistant composition, it excels in chemical processing, marine equipment, and food manufacturing, where moisture and contaminants are prevalent. The precisely machined shoulder ensures accurate alignment of moving parts, such as gears and pulleys, enhancing operational reliability and reducing maintenance downtime in industrial applications.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for tight tolerances and consistent performance. Key dimensional accuracies include a shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005". It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global supply chains. Manufactured to meet industrial specifications for right-hand thread direction and standard shoulder fit, it guarantees reliability in precision engineering contexts.