S-96655A128 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life.
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under high-stress conditions.
• Precise component alignment enabled by the 3/8" diameter shoulder with tight tolerances, reducing wear and ensuring smooth rotational movement.
• Secure and easy installation with a hex socket drive and knurled head texture, providing excellent grip and preventing tool slippage.
• Versatile coarse UNC threading (8-32) with Class 2B fit for quick assembly and robust holding power in a wide range of materials.
• Optimized for partial threading to allow for precise clamping and positioning without unnecessary thread engagement.
• Compliant with global regulations including RoHS 3 and REACH, ensuring safety and environmental responsibility in your supply chain.

Professional Applications & Engineering Value

This 8-32 UNC shoulder screw is engineered to address critical alignment and durability challenges in industrial assemblies. The 18-8 stainless steel material offers excellent resistance to rust and corrosion, making it suitable for applications in machinery, automotive, and electronics where exposure to moisture or chemicals is a concern. The 3/8" shoulder diameter with precise tolerances acts as a pivot or bearing surface, reducing friction and preventing misalignment in moving parts. Combined with a coarse UNC thread and Class 2B thread fit, it ensures quick, secure fastening in assemblies requiring high strength and reliability. The hex socket drive and knurled head further enhance installation efficiency, reducing assembly time and improving worker safety. Ideal for use in precision instruments, conveyor systems, and robotic arms, this shoulder screw delivers consistent performance and long-term value.

Specification Summary & Compliance

This shoulder screw features a Class 2B thread fit and UNC thread standard, ensuring dimensional accuracy and interchangeability. The shoulder diameter tolerance is -0.004" to -0.002", and the shoulder length tolerance is -0.005" to 0.005", providing precise manufacturing control. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial use.