S-93395A471 M12 x 20 mm DIN 7991 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• High tensile strength of 70,000 PSI ensures reliable, long-lasting fastening under demanding mechanical loads
• Passivated surface finish enhances durability and provides additional protection against oxidation and wear
• 8mm hex drive design allows for secure tool engagement and high torque application without slippage
• M12 coarse thread (1.75mm pitch) enables quick installation and superior holding power in various materials
• Full compliance with DIN 7991 standards guarantees dimensional accuracy and interchangeability
• Class 6g thread fit ensures precise mating with nuts and threaded holes for vibration-resistant assemblies

Professional Applications & Engineering Value

These M12 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 aggressive environments including chemical processing, marine applications, and food processing equipment. The flat head design with 90° countersink provides a flush surface finish, while the 8mm hex drive enables high-torque installation in confined spaces. The coarse metric threading (1.75mm pitch) ensures rapid assembly and superior pull-out resistance in metals, plastics, and composite materials, making them ideal for structural fastening, machinery assembly, and equipment maintenance where vibration resistance is essential.

Specification Summary & Compliance

This M12 x 1.75mm x 20mm flat head screw features Class 6g thread tolerance according to metric standards, ensuring precise fit with mating components. The product fully complies with DIN 7991 specifications for dimensional accuracy, including head diameter tolerance of -0.52 to 0 mm and standard flat head profile. Manufacturing and material compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and restricted substance compliance for industrial use across global markets.