S-96126A118 2-56 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel and passivated finish for extended service life in harsh environments
• Precise component alignment ensured by the smooth, accurately machined shoulder with tight diameter and length tolerances
• High-strength performance delivering 70,000 psi tensile strength and Rockwell B79 hardness for demanding applications
• Reliable thread engagement with Class 2A fit UNC coarse threads for secure fastening and easy assembly
• Secure hex drive installation using a standard 5/64" hex key, preventing cam-out and ensuring proper torque transfer
• Compliance with environmental regulations including RoHS 3 and REACH for global market acceptance
• Versatile right-hand threading compatible with standard UNC nuts and components for broad industrial use

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to solve critical alignment and corrosion challenges in precision assemblies. The 1/2" precise shoulder length provides a stable bearing surface for rotating components like gears, pulleys, and linkages, eliminating misalignment and reducing wear. The UNC coarse thread with Class 2A fit ensures rapid assembly while maintaining vibration resistance in machinery, automation systems, and electronic enclosures. The passivated finish on the 316 stainless steel base material offers exceptional protection against chlorides and chemicals, making it ideal for marine, chemical processing, and food equipment applications where corrosion failure is not an option. The combination of 70,000 psi tensile strength and hex drive installation allows for high clamp loads without stripping, delivering reliability in high-stress industrial environments.

Specification Summary & Compliance

This shoulder screw maintains Class 2A thread fit per UNC standards with precise shoulder diameter tolerance of -0.001" to 0" and shoulder length tolerance of 0" to 0.002". Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material transparency. The inch-system measurements and UNC thread form provide compatibility with North American industrial specifications.