S-90325A171 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 Stainless Steel construction and a passivated finish, ensuring long-term reliability in harsh environments.
• High-strength performance with a tensile strength of 70,000 psi and Rockwell B55 hardness, providing dependable load-bearing capacity for demanding applications.
• Precise alignment and location enabled by the exact shoulder fit and controlled shoulder diameter and length tolerances, reducing assembly errors and improving component stability.
• Secure and efficient installation using the 3/32" hex drive and standard socket head, allowing for high torque application and reduced risk of stripping.
• Reliable thread engagement with a Class 2A UNC coarse thread fit, ensuring consistent fastening and ease of assembly in various materials.
• Compliance with environmental regulations, being RoHS 3 and REACH compliant, making it suitable for use in regulated industries and global markets.
• Durable and smooth operation due to the smooth head texture and right-hand thread direction, minimizing wear and facilitating smooth disassembly when needed.

Professional Applications & Engineering Value

This 8-32 UNC shoulder screw is engineered to address critical challenges in precision assemblies, such as misalignment and vibration-induced failures. Crafted from 18-8 stainless steel with a passivated finish, it offers exceptional corrosion resistance, ideal for machinery, automotive, and electronics where exposure to moisture or chemicals is common. The exact shoulder fit and Class 2A thread fit ensure precise component positioning, reducing wear and enhancing operational stability in rotating or sliding mechanisms. Its socket head with hex drive allows for tight spaces and high-torque applications, streamlining maintenance and assembly processes while upholding 70,000 psi tensile strength for heavy-duty use.

Specification Summary & Compliance

This shoulder screw features a Class 2A thread fit per UNC standards, with precise dimensions including a 3/8" thread length, 5/16" head diameter, and controlled shoulder tolerances (e.g., shoulder diameter tolerance of -0.001" to 0"). Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it meets stringent environmental and safety regulations, ensuring reliability and suitability for global industrial applications.