S-90729A166 M3 x 6 mm Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Enhanced driving torque and reduced cam-out thanks to the 2mm hex drive design for secure installation
• Reliable thread engagement and vibration resistance from the fully threaded M3 x 0.5mm coarse pitch and Class 6g thread fit
• Flush, low-profile seating enabled by the 100° countersink angle and undercut flat head design
• High mechanical strength and durability with Rockwell B70 hardness and 70,000 psi tensile strength
• Consistent dimensional accuracy ensured by tight head diameter tolerance (-0.127 to 0.127 mm)
• Compliance with environmental regulations including RoHS 3 and REACH for global market acceptance

Professional Applications & Engineering Value

These M3 metric flat head screws deliver exceptional performance in demanding industrial applications where corrosion resistance and mechanical reliability are critical. Manufactured from 316 stainless steel with a passivated finish, they withstand exposure to chemicals, moisture, and extreme temperatures. The combination of fully threaded coarse pitch and Class 6g thread fit ensures rapid assembly and secure fastening in metals and plastics, reducing the risk of loosening under vibration. The undercut flat head with 100° countersink angle provides a flush finish, preventing protrusion in tight spaces. Ideal for machinery, electronic enclosures, and marine equipment, these hex drive screws offer long-term reliability with minimal maintenance.

Specification Summary & Compliance

This M3 x 0.5mm x 6mm flat head screw adheres to metric thread standards with Class 6g thread fit tolerance for precise engagement. The manufacturing process ensures consistent dimensions, including head diameter tolerance of -0.127 to 0.127 mm. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances. The right-hand thread and coarse thread spacing follow standard metric specifications for broad compatibility in industrial fastening systems.