S-97768A196 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and long-term reliability.
• Precise component alignment and reduced wear thanks to the 3/4" shoulder length, providing a stable bearing surface for rotating parts.
• Superior thread engagement and vibration resistance from the Class 3A thread fit, ensuring secure fastening in high-stress applications.
• Enhanced durability and reduced galling with the black oxide finish, offering improved wear resistance and a sleek, non-reflective appearance.
• High-strength performance under load with 70,000 psi tensile strength and 35,000 psi shear strength, suitable for demanding mechanical assemblies.
• Secure and easy installation using a standard 3/32" hex drive and knurled head, allowing for reliable torque application and grip.
• Compliance with global environmental standards, including RoHS 3 and REACH, ensuring safe and sustainable use in regulated industries.

Professional Applications & Engineering Value

This 8-32 UNC shoulder screw is engineered to address critical challenges in precision machinery and industrial equipment. The 18-8 stainless steel material provides excellent resistance to corrosion and oxidation, making it ideal for applications in automotive, aerospace, and manufacturing where exposure to moisture and chemicals is common. The 3/4" shoulder length acts as a precise spacer or pivot point, reducing friction and wear in assemblies involving gears, bearings, or linkages. Combined with the black oxide finish, it minimizes seizing and extends service life. The Class 3A thread fit and hex drive socket head ensure tight tolerances and easy installation, supporting efficient maintenance and reducing downtime in high-vibration environments. This fastener is a reliable solution for engineers seeking durability, precision, and compliance in their industrial fastening systems.

Specification Summary & Compliance

This shoulder screw features precise dimensional tolerances, including a Class 3A thread fit for superior accuracy and a shoulder diameter tolerance of -0.004" to -0.002". It adheres to UNC thread standards with a coarse thread spacing, ensuring compatibility with standard components. Manufactured from 18-8 stainless steel with a Rockwell B55 hardness, it meets rigorous performance criteria. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industrial applications.