S-98621A139 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced wear resistance with TiCN coating for extended service life in high-friction applications
• Superior corrosion protection from 18-8 stainless steel construction in demanding industrial environments
• Precise component alignment through controlled shoulder diameter tolerance (-0.025 to 0 mm) for reduced assembly vibration
• Reliable thread engagement with Class 6g metric thread fit ensuring consistent fastening performance
• High-strength performance with 70,000 psi tensile strength for critical load-bearing applications
• Optimized drive efficiency through hex socket design preventing cam-out during installation
• Environmental compliance meeting RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

Engineered for precision alignment in rotating assemblies and mechanical systems, this M5 shoulder screw solves critical positioning challenges in industrial equipment. The 12mm shoulder length with precise diameter control provides accurate bearing surfaces for gears, pulleys, and linkages, eliminating misalignment issues that cause premature wear. The TiCN coated 18-8 stainless steel construction delivers exceptional surface hardness (Rockwell B55) while maintaining corrosion resistance in harsh operating conditions. The Class 6g thread fit ensures consistent clamping force in automated assembly processes, while the coarse M5x0.8 thread pitch provides rapid installation in high-volume manufacturing environments. These metric shoulder screws are particularly valuable in precision machinery, automotive systems, and conveyor equipment where dimensional stability and wear resistance are paramount.

Specification Summary & Compliance

This precision fastener features Class 6g thread tolerance per metric standards with controlled shoulder diameter (-0.025 to 0 mm) and length (0 to 0.05 mm) tolerances for exacting fit requirements. The M5x0.8 coarse thread configuration follows standard metric threading specifications. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring restricted substance compliance.