S-90278A423 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Precise component alignment enabled by the 8mm shoulder diameter with tight manufacturing tolerances
• High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
• Secure, high-torque installation with the 4mm hex socket drive that prevents stripping and ensures reliable fastening
• Consistent thread engagement through Class 6g metric thread fit, providing reliable assembly performance
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global market acceptance
• Versatile industrial compatibility with standard M6x1mm coarse thread for broad application across machinery and equipment

Professional Applications & Engineering Value

This precision shoulder screw solves critical alignment challenges in mechanical assemblies where components must rotate or pivot accurately on the shoulder section. The 18-8 stainless steel material provides excellent corrosion resistance while maintaining structural integrity in demanding environments. The 16mm shoulder length with precise tolerances ensures consistent spacing between components, eliminating misalignment issues in machinery, automation equipment, and precision instruments. The hex socket drive allows for high-torque installation in confined spaces, while the Class 6g thread fit guarantees reliable engagement in dynamic applications. These metric shoulder screws deliver engineering value by reducing assembly time, minimizing component wear, and maintaining long-term dimensional stability across industrial applications.

Specification Summary & Compliance

This shoulder screw features M6x1mm coarse metric threading with Class 6g thread fit per ISO standards. The shoulder maintains precise dimensions with diameter tolerance of -0.025 to 0 mm and length tolerance of 0 to 0.05 mm. Manufactured from 18-8 stainless steel with Rockwell B55 hardness and 70,000 psi tensile strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety and restricted substances.