S-90337A367 2-56 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring longevity in harsh industrial environments
• Precise component alignment through a smooth, precisely machined shoulder with tight diameter and length tolerances for reliable positioning
• High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding mechanical applications
• Space-saving low-profile design with socket head and 5/64" hex drive for installations where clearance is limited
• Consistent thread engagement with Class 2A UNC coarse threads providing reliable fastening in right-hand applications
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global manufacturing requirements
• Optimized drive efficiency with hex socket design enabling secure tool engagement and reduced stripping risk

Professional Applications & Engineering Value

This precision 2-56 UNC shoulder screw solves critical alignment challenges in industrial assemblies where component positioning accuracy is paramount. The 18-8 stainless steel construction with passivated finish provides exceptional corrosion resistance for applications exposed to moisture, chemicals, or outdoor elements. The precisely machined shoulder diameter and controlled tolerances ensure consistent spacing and alignment in machinery, electronic enclosures, and precision instruments. The low profile socket head design allows for compact installations while maintaining full 5/64" hex drive functionality. With 70,000 psi tensile strength, these shoulder screws maintain structural integrity in high-stress applications, making them ideal for pivots, axles, and guiding elements in automated equipment and precision mechanisms.

Specification Summary & Compliance

This shoulder screw features Class 2A thread fit with UNC coarse threads in 2-56 size, manufactured to inch system specifications. The precision shoulder maintains diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002" for exacting alignment requirements. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance. Mechanical properties include Rockwell B55 hardness and 70,000 psi tensile strength for reliable performance in industrial applications.