S-97768A189 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments.
• Enhanced wear resistance and reduced light glare from the Black Oxide finish, extending service life.
• Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for high-stress applications.
• Precise alignment and pivot function ensured by the 3/16" shoulder diameter with tight tolerances.
• Reliable, high-precision thread engagement with Class 3A UNC coarse threads for secure fastening.
• Secure, non-slip installation using the hex socket drive and knurled head for improved grip.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use.

Professional Applications & Engineering Value

This 8-32 UNC Thread Shoulder Screw is engineered to solve critical alignment and pivot challenges in precision assemblies. The 18-8 Stainless Steel material provides excellent corrosion resistance, while the Black Oxide finish adds durability and minimizes galling. The 3/16" shoulder diameter with controlled tolerances acts as a precise locating dowel, preventing component misalignment in machinery, automotive, and electronic enclosures. Its Class 3A thread fit and coarse thread spacing ensure quick assembly and high vibration resistance, making it a reliable choice for automated equipment and high-load applications where Rockwell B55 hardness and dimensional stability are paramount.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for precision. The shoulder diameter tolerance is -0.004" to -0.002", and shoulder length tolerance is -0.005" to 0.005", ensuring exacting dimensional accuracy. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for regulated industrial and international markets.