S-90278A418 M8 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 ensured by the 14mm shoulder with tight diameter tolerance for reduced vibration and wear
• High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
• Secure and efficient installation with 5mm hex socket drive, preventing cam-out and enabling high torque application
• Reliable thread engagement through Class 6g thread fit and M8x1.25 coarse pitch for quick assembly and vibration resistance
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Versatile metric sizing with standardized M8 coarse threads ensuring broad compatibility with industrial equipment

Professional Applications & Engineering Value

These precision shoulder screws deliver exceptional engineering value in applications requiring exact component positioning and rotational control. The 18-8 stainless steel construction provides excellent corrosion resistance, making them suitable for food processing, chemical, and marine environments where moisture resistance is critical. The 14mm shoulder length with precise diameter control acts as a reliable pivot point or bearing surface in machinery assemblies, eliminating the need for additional bushings and reducing component count. The hex socket drive enables high-torque installation in confined spaces, while the Class 6g thread fit ensures consistent engagement in automated assembly systems. These metric shoulder bolts are engineered to solve alignment challenges in robotics, conveyor systems, and precision manufacturing equipment where vibration resistance and dimensional stability are paramount.

Specification Summary & Compliance

This M8 shoulder screw features a 1.25mm coarse pitch thread with Class 6g thread fit per metric 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. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.