S-94035A163 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 Stainless Steel construction and passivated finish, ideal for harsh industrial environments.
• Exceptional mechanical strength with a 70000 psi tensile strength and Rockwell B55 hardness for reliable performance under high-stress loads.
• Precise component alignment enabled by the smooth, 3/16" diameter shoulder with a tight tolerance fit (-0.001" to 0") for reduced assembly play.
• Secure and efficient installation using the standard hex socket head and 3/32" drive, preventing cam-out and ensuring consistent torque application.
• Wide compatibility with coarse UNC 8-32 threads and Class 2A fit, facilitating easy assembly and interchangeability in various applications.
• Regulatory compliance assurance by meeting RoHS 3 and REACH standards, ensuring environmental safety and material reliability.
• Optimized for right-hand thread applications with a 3/16" thread length, providing robust fastening in dynamic or rotating assemblies.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address common industrial challenges such as misalignment, vibration loosening, and corrosion-induced failure. The 18-8 Stainless Steel material, combined with a passivated finish, offers excellent resistance to oxidation and chemical exposure, making it suitable for machinery, automotive, and electronic enclosures. The UNC coarse thread and Class 2A thread fit ensure quick, reliable fastening, while the precisely machined shoulder acts as a pivot or spacer, maintaining accurate positioning in assemblies like bearings, gears, and linkages. Its hex socket head design allows for high-torque installation in confined spaces, reducing the risk of stripping and enhancing overall assembly integrity for long-term durability.

Specification Summary & Compliance

This shoulder screw adheres to inch system measurements with a Class 2A thread fit for standard UNC 8-32 threads, ensuring dimensional accuracy and interchangeability. Manufacturing complies with industry standards for precision, including shoulder diameter tolerance of -0.001" to 0" and shoulder length tolerance of 0" to 0.002". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting sustainable procurement practices.