S-90318A950 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction for extended service life in harsh environments
• Precise component alignment through the 8mm shoulder diameter with tight tolerance control for reduced assembly errors
• High mechanical strength with 70,000 PSI tensile strength and Rockwell B70 hardness for demanding applications
• Reliable thread engagement with Class 6g thread fit ensuring consistent fastening performance
• Space-saving installation featuring ultra-low socket head profile ideal for compact assemblies
• Easy installation and removal with standard 4mm hex drive for efficient maintenance operations
• Environmental compliance meeting RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

This M6 shoulder screw delivers critical engineering value in precision assembly applications where component alignment and corrosion resistance are paramount. The 316 Stainless Steel construction provides exceptional protection against chemical exposure and atmospheric corrosion, making it ideal for marine, chemical processing, and food equipment applications. The precisely machined 8mm shoulder diameter acts as a positive locating feature, eliminating the need for additional alignment components and reducing assembly time. The ultra-low socket head profile with 4mm hex drive enables installation in confined spaces while maintaining high torque capability. With Class 6g thread fit and 1mm coarse pitch, these metric shoulder screws ensure reliable fastening in vibration-prone environments common in industrial machinery and automation systems.

Specification Summary & Compliance

This precision shoulder screw features M6x1mm metric coarse threads with Class 6g thread fit per ISO standards, ensuring dimensional accuracy and interchangeability. The shoulder maintains precise tolerances with diameter controlled at -0.025 to 0 mm and length at 0 to 0.05 mm. Manufactured from 316 Stainless Steel with Rockwell B70 hardness and 70,000 PSI tensile strength, the fastener meets rigorous mechanical performance requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring verified material safety and environmental responsibility.