S-93395A327 M5 x 40 mm DIN 7991 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 316 stainless steel construction and passivated finish, ideal for harsh industrial environments
• High tensile strength of 70,000 psi ensures reliable, long-lasting fastening in demanding applications
• Precise Class 6g thread fit guarantees smooth installation and secure connections with minimal play
• 3mm hex drive design provides superior torque transmission and reduces the risk of tool slippage
• Fully threaded M5x0.8mm coarse pitch enables faster assembly and improved vibration resistance
• DIN 7991 standard compliance ensures consistent quality, dimensional accuracy, and interchangeability
• RoHS 3 and REACH regulatory compliance meets international environmental and safety standards for industrial use

Professional Applications & Engineering Value

Engineered for industrial applications where corrosion resistance and mechanical reliability are critical, these M5 flat head screws deliver exceptional performance in challenging environments. The 316 stainless steel material combined with passivated finish provides superior protection against chemical exposure and atmospheric corrosion, making them ideal for marine, chemical processing, and food industry applications. The fully threaded coarse pitch design ensures rapid installation and maintains secure fastening under vibration, while the flat head profile with 90° countersink creates flush surfaces for streamlined assemblies. With hex drive compatibility and precise Class 6g thread fit, these screws offer consistent performance in machinery, equipment manufacturing, and structural applications requiring dependable metric screw solutions.

Specification Summary & Compliance

This M5 x 0.8mm x 40mm flat head screw maintains precise dimensional tolerances including Class 6g thread fit and head diameter tolerance of -0.36 to 0 mm. Manufactured in compliance with DIN 7991 standards for metric flat head screws, the product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements. The screw features right-hand metric threading with coarse 0.8mm pitch and full 40mm threading length, ensuring consistent performance across industrial applications requiring standardized metric fasteners.