S-90358A002 M3 x 8 mm Alloy Steel Ultra-Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional strength-to-weight ratio with 140,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance provided by the black-oxide finish on alloy steel, extending service life in harsh environments
• Precise thread engagement with Class 5g6g thread fit ensuring consistent assembly and vibration resistance
• Space-saving ultra-low profile head design allowing installation in confined spaces while maintaining high torque capability
• Optimized hardness characteristics at Rockwell C32 for excellent wear resistance without brittleness
• Enhanced drive stability with 2mm hex socket providing secure tool engagement and reduced cam-out risk
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global manufacturing applications

Professional Applications & Engineering Value

These M3 socket head cap screws with ultra-low profile design solve critical space constraints in precision equipment assembly. The black-oxide alloy steel construction provides essential corrosion protection while maintaining the 140,000 psi tensile strength required for structural integrity in industrial machinery, automation systems, and electronic enclosures. The Class 5g6g thread fit ensures precise mating with tapped holes, reducing the risk of cross-threading and providing consistent clamping force in vibration-prone applications. The coarse thread pitch (0.5mm) facilitates quicker assembly while the fully threaded design allows for flexible positioning and uniform stress distribution. These metric socket screws are engineered to maintain dimensional stability across temperature variations, making them ideal for precision instruments, robotics, and manufacturing equipment where reliability is paramount.

Specification Summary & Compliance

This M3 x 0.5mm x 8mm socket head cap screw features Class 5g6g thread fit per ISO metric standards with length tolerance of ±0.127mm for precision assembly. Manufactured from alloy steel with black-oxide surface treatment, the fastener maintains Rockwell C32 hardness and 140,000 psi tensile strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance for industrial applications.