S-92183A122 2-56 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and long-term reliability.
• Superior thread engagement and vibration resistance from the Class 3A fit UNC coarse thread, ensuring secure fastening in high-stress applications.
• High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength, providing dependable performance under heavy loads.
• Precise component alignment and spacing enabled by the machined shoulder with tight diameter and length tolerances.
• Easy installation and removal using the 5/64" hex drive and knurled head, offering excellent grip and torque application.
• Enhanced durability and wear resistance from Rockwell B55 hardness, maintaining integrity through repeated use.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use in regulated industries.

Professional Applications & Engineering Value

This 2-56 UNC thread shoulder screw is engineered to solve critical alignment and mounting challenges in precision assemblies. The 18-8 stainless steel material provides excellent corrosion resistance, making it suitable for applications in machinery, electronics, and automotive sectors where exposure to moisture or chemicals is a concern. The coarse thread spacing and Class 3A fit ensure rapid assembly and superior resistance to loosening under vibration, reducing maintenance needs. The precisely machined shoulder acts as a pivot, spacer, or bearing surface, allowing for accurate positioning of components like gears, pulleys, and linkages. Combined with a hex drive and knurled head, it facilitates easy installation in confined spaces, enhancing productivity and reliability in industrial fastening systems.

Specification Summary & Compliance

This shoulder screw features a 2-56 UNC thread with Class 3A fit for high precision and strength. Key dimensional tolerances include a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.002" to 0.002", ensuring consistent performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting use in environmentally conscious and global markets. Manufactured to meet standard industrial specifications for socket head shoulder screws, it guarantees reliability in demanding applications.