S-90269A532 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and black oxide finish, ideal for harsh industrial environments
• Precise component alignment through a 5mm shoulder with controlled diameter and length tolerances for stable assembly
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for demanding applications
• Secure hex drive engagement with 2.5mm drive size and knurled head for reliable torque transmission
• Accurate thread fit with Class 5g6g metric coarse threads ensuring consistent fastening performance
• Rockwell B79 hardness providing excellent wear resistance and long service life
• Compliance with environmental regulations including RoHS 3 and REACH for global industrial use

Professional Applications & Engineering Value

This M3 shoulder screw delivers exceptional engineering value in precision assemblies where alignment and corrosion resistance are critical. The 316 stainless steel material combined with black oxide finish provides superior protection against chemical exposure and atmospheric corrosion, making it ideal for marine, chemical processing, and food equipment applications. The precisely machined 5mm shoulder acts as a pivot or spacer, eliminating the need for additional components in machinery, rotating assemblies, and precision instruments. The hex drive design with knurled head ensures secure tool engagement during installation, while the Class 5g6g thread fit maintains consistent clamping force in vibrating environments. These features collectively solve common industrial challenges of component misalignment, corrosion-induced failure, and assembly inefficiency.

Specification Summary & Compliance

This metric shoulder screw features M3 x 0.5mm coarse threads with Class 5g6g thread fit per ISO standards. Shoulder diameter tolerance is maintained at -0.072 to -0.01 mm with shoulder length tolerance of 0 to 0.25 mm for precision applications. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial markets worldwide.