S-97345A185 10-32 ASME B18.3 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 offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable load-bearing in demanding applications.
• Precision Class 3A thread fit ensures tight tolerances and secure fastening with minimal backlash in assemblies.
• Convenient installation and removal via the 1/8" hex socket drive and knurled head, providing excellent grip and torque application.
• Accurate component alignment with a 1" shoulder length and standard shoulder fit, maintaining precise part positioning.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring quality and environmental safety.
• Durable fine threading (10-32 UNF) enhances vibration resistance and provides a secure hold in right-hand thread applications.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and corrosive environments. The Class 3A thread fit and fine 10-32 UNF threading deliver exceptional dimensional accuracy, reducing the risk of loosening under vibration and ensuring repeatable assembly performance. The 1" shoulder length provides a stable bearing surface for rotating components like gears and pulleys, minimizing misalignment and wear. With a knurled head and hex socket drive, it allows for efficient installation in confined spaces, while the high tensile strength supports heavy-duty applications in aerospace, medical devices, and marine equipment. Its corrosion-resistant properties make it suitable for chemical processing and outdoor use, offering long-term reliability and reduced maintenance costs.

Specification Summary & Compliance

This shoulder screw adheres to Class 3A thread fit tolerances for precise engagement, with a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005". It conforms to ASME B18.3 specifications for dimensional consistency and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for industrial use.