S-97345A146 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
• Precise location and smooth rotation ensured by the 3/4" shoulder with tight tolerances for reliable assembly alignment.
• High-strength performance with 70,000 psi tensile and 35,000 psi shear strength for demanding mechanical applications.
• Secure and repeatable fastening provided by the Class 3A fit 8-32 UNC coarse thread, reducing the risk of loosening.
• Easy installation and removal with the hex socket drive and knurled head for enhanced grip and torque application.
• Durable and wear-resistant material with Rockwell B79 hardness, maintaining integrity under stress.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in industrial applications where precision, strength, and corrosion resistance are paramount. The 3/4" shoulder length provides a stable bearing surface for moving parts like gears, linkages, and pulleys, minimizing wear and ensuring accurate alignment. The 8-32 UNC coarse thread with a Class 3A fit offers reliable engagement in tapped holes, reducing the risk of cross-threading and vibration-induced failure. Made from 316 stainless steel, it excels in corrosive environments such as chemical processing, marine, and food equipment, while the hex socket drive and knurled head facilitate easy installation in tight spaces. Ideal for precision machinery and heavy-duty assemblies, this screw delivers long-term reliability and reduced maintenance costs.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit per UNC standards, ensuring tight tolerances for secure fastening. Key dimensions include a shoulder diameter of 7/32" with a tolerance of -0.004" to -0.002" and a shoulder length of 3/4" with a tolerance of -0.005" to 0.005". It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally sensitive and industrial applications.