S-97345A480 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.
• High-strength performance offering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing in demanding applications.
• Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash and improved assembly accuracy.
• Easy installation and removal with a 3/32" hex socket drive and knurled head for enhanced grip and torque application.
• Durable shoulder design provides stable bearing surfaces and precise alignment for rotating components.
• Compliance with RoHS 3 and REACH standards, ensuring environmental safety and regulatory acceptance for global markets.
• Coarse UNC threads facilitate quicker assembly and reduced cross-threading risks in industrial settings.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, such as misalignment and corrosion-induced failure. Its Class 3A thread fit and UNC coarse threads deliver consistent clamping force and vibration resistance, essential for assembly lines and automated systems. The knurled head and hex socket drive enable efficient torque transfer, reducing installation time and tool wear. With a 70,000 psi tensile strength, it supports high-stress applications in aerospace, marine, and chemical processing, where corrosion resistance and durability are paramount. The integrated shoulder acts as a reliable pivot or spacer, minimizing part movement and maintenance needs in rotating assemblies.

Specification Summary & Compliance

The screw adheres to UNC thread standards with a Class 3A precision fit for tight tolerances. Dimensions include a thread size of 8-32, shoulder diameter of 3/16" (tolerance: -0.004" to -0.002"), and shoulder length of 1/4" (tolerance: -0.005" to 0.005"). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no hazardous substances are used. Manufactured to achieve a hardness of Rockwell B79, it meets industry demands for reliability and safety in technical fastening solutions.