S-97345A852 5/8"-11 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.
• High tensile and shear strength (70,000 psi tensile, 35,000 psi shear) ensures reliable performance under heavy loads.
• Precision Class 3A thread fit guarantees tight tolerances and secure fastening in critical assemblies.
• Knurled socket head with 3/8" hex drive provides excellent grip and torque application, reducing tool slippage.
• Coarse 5/8"-11 UNC threads enable quick installation and high resistance to vibration loosening.
• ASME B18.3 compliance and RoHS/REACH certification ensure adherence to industry standards and environmental regulations.
• Durable Rockwell B79 hardness offers long-term wear resistance and dimensional stability.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical stress. The precision shoulder diameter and Class 3A UNC thread fit provide exact positioning and secure retention in machinery, automotive, and aerospace applications. Its corrosion-resistant material and high tensile strength make it suitable for demanding environments where reliability is critical. The knurled socket head enhances handling during assembly, reducing installation time and improving safety in high-vibration settings.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit with precise dimensions: 5/8"-11 UNC coarse threads, 3/4" shoulder diameter, and 1 1/8" shoulder length. It conforms to ASME B18.3 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industry acceptance.