S-97345A323 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 316 stainless steel construction, ideal for harsh environments and chemical exposure
• Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high stress
• Precise alignment and secure positioning enabled by the precision-ground shoulder with controlled diameter and length tolerances
• High-reliability threading with Class 3A fit UNC coarse threads ensuring consistent, vibration-resistant fastening
• Enhanced grip and easy installation from the knurled head and standard hex socket, reducing slippage during torque application
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use in regulated industries
• Optimized for durability with a Rockwell B79 hardness rating, providing excellent wear resistance over long-term use

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in precision assembly and machinery. The UNC coarse thread and Class 3A fit provide superior thread engagement and vibration resistance, essential for dynamic industrial equipment. The precision shoulder diameter and length with tight tolerances ensure exact component alignment, reducing wear and misalignment in applications like rotating shafts, linkages, and bearing mounts. The hex socket knurled head offers secure drive engagement, even in oily or high-vibration settings, while the corrosion-resistant 316 material withstands aggressive environments, making it ideal for chemical processing, marine, and food-grade machinery where reliability and compliance with RoHS and REACH are paramount.

Specification Summary & Compliance

This shoulder screw features an 8-32 UNC coarse thread with a Class 3A fit for high precision. The shoulder diameter is 3/16" with a tolerance of -0.004" to -0.002", and the shoulder length is 15/32" with a tolerance of -0.005" to 0.005", ensuring consistent alignment. Manufactured from 316 stainless steel, it meets mechanical properties including 70,000 psi tensile strength and Rockwell B79 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting use in environmentally sensitive and regulated industrial applications.