S-90278A419 M8 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for reliable performance in harsh industrial environments
• Precise component alignment through the 10mm shoulder diameter with tight manufacturing tolerances for reduced assembly errors
• High-strength durability with Rockwell B55 hardness and 70,000 psi tensile strength to withstand demanding mechanical loads
• Secure torque transmission via the hex socket drive design that prevents tool slippage during installation
• Reliable thread engagement with Class 6g metric coarse threads ensuring consistent fastening performance
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe usage across regulated industries
• Optimized for high-volume assembly with standardized metric dimensions and right-hand threading for efficient production workflows

Professional Applications & Engineering Value

This M8 shoulder screw with 1.25mm coarse pitch thread delivers exceptional engineering value in precision assembly applications. The 18-8 stainless steel construction provides excellent corrosion resistance for machinery operating in humid or chemically aggressive environments. The precisely machined 10mm shoulder diameter with tight tolerances ensures accurate component positioning in rotating assemblies, eliminating misalignment issues in automotive, aerospace, and industrial equipment. The hex socket drive enables high-torque installation without damaging the fastener head, while the Class 6g thread fit guarantees consistent engagement in high-vibration applications. These precision shoulder screws are engineered to solve critical alignment challenges in motion control systems, bearing mounts, and precision instrument assemblies where dimensional accuracy directly impacts operational reliability.

Specification Summary & Compliance

This metric shoulder screw features M8 x 1.25mm coarse thread spacing with Class 6g thread fit per ISO standards. The precision shoulder maintains a 10mm diameter with -0.025 to 0 mm tolerance and 16mm length with 0 to 0.05 mm tolerance. 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.