S-97345A392 8-32 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh industrial and marine environments.
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing applications.
• Precision Class 3A thread fit ensures tight, secure fastening with minimal backlash in assemblies.
• Secure and easy installation with a knurled socket head and 1/8" hex drive, preventing tool slippage.
• Durable and wear-resistant with a Rockwell B79 hardness, maintaining integrity under repeated use.
• Broad compatibility with 8-32 UNC coarse threads, suitable for standard industrial components.
• Regulatory compliance with ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental standards.

Professional Applications & Engineering Value

This 316 Stainless Steel shoulder screw is engineered to address common industrial challenges such as component misalignment and corrosion-induced failure. Its precision shoulder diameter and Class 3A UNC thread fit provide exact positioning and secure fastening in machinery, reducing vibration and wear. The coarse thread design allows for quick assembly and disassembly, while the knurled socket head enhances grip during installation, minimizing downtime. Ideal for applications in automation systems, precision instruments, and marine equipment, it ensures long-term reliability and performance in demanding environments.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit with precise dimensions, including a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005". It adheres to ASME B18.3 standards for uniformity and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety requirements for industrial use.