S-97345A331 6-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh industrial environments and extended service life.
• High-strength performance with 70,000 psi tensile and 35,000 psi shear strength, ensuring reliable load-bearing capacity in demanding applications.
• Precise thread engagement from the Class 3A fit and UNC coarse thread, providing excellent vibration resistance and reduced risk of cross-threading.
• Secure and non-slip installation enabled by the knurled socket head and 3/32" hex drive, allowing for high torque application without tool slippage.
• Accurate component alignment due to the consistent 3/16" shoulder diameter and length, maintaining part positioning in assemblies.
• Enhanced durability from the Rockwell B79 hardness, offering excellent wear resistance for repeated use.
• Compliance with global standards including RoHS 3 and REACH, ensuring safety and environmental responsibility for international projects.

Professional Applications & Engineering Value

This 316 Stainless Steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and electronic enclosures. The UNC coarse thread and Class 3A fit ensure rapid assembly and superior vibration resistance, reducing maintenance needs in high-cycle operations. The knurled socket head with a 3/32" hex drive prevents cam-out, allowing for secure fastening in confined spaces. Its 3/16" shoulder acts as a precise pivot or spacer, eliminating misalignment in rotating parts or PCB mounts. Made from 316 Stainless Steel, it resists corrosion from chemicals, moisture, and salt, making it ideal for marine, chemical processing, and outdoor equipment. This combination of high tensile strength and precise dimensions delivers long-term reliability, minimizing downtime and replacement costs in industrial applications.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A fit for precise thread engagement and tolerance. Key dimensional accuracies include a shoulder diameter of 3/16" with a tolerance of -0.004" to -0.002" and a shoulder length of 3/8" with a tolerance of -0.005" to 0.005". The product is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for regulated industrial and electronic uses.