S-90337A181 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
• Enhanced assembly precision due to the precise 3/16" shoulder diameter and length with tight tolerances, ensuring accurate component alignment.
• High mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under load.
• Secure and efficient installation with a low-profile hex socket head and 3/32" drive, allowing for compact designs and reduced stripping risk.
• Wide compatibility with 8-32 UNC coarse threads and Class 2A fit, facilitating easy integration into standard assemblies.
• Environmental compliance assurance by meeting RoHS 3 and REACH regulations, supporting sustainable manufacturing practices.
• Optimized for automated processes featuring a smooth head texture and right-hand thread direction for consistent, high-speed driving.

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, combined with a passivated finish, provides excellent resistance to corrosion and wear, making it suitable for applications in machinery, automotive, and electronics where exposure to moisture or chemicals is common. The precise shoulder diameter and length ensure accurate positioning of components like gears, pulleys, or linkages, reducing vibration and misalignment issues. With a hex socket head and low-profile design, it allows for tight spaces and secure torque application, enhancing assembly efficiency. This screw's 70,000 psi tensile strength and coarse thread spacing further contribute to reliable performance in high-stress environments, minimizing the risk of failure and maintenance costs.

Specification Summary & Compliance

This shoulder screw adheres to Class 2A thread fit and UNC standards for consistent engagement, with a shoulder diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002" for precise assembly. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.