S-91294A196 M4 x 20 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional strength and reliability with Class 10.9 rating and 120,000 psi tensile strength, ensuring secure fastening in demanding industrial environments
• Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in various operating conditions
• Optimized for flush mounting with a standard 90° countersink angle and flat head design, providing a smooth, professional finish
• Easy and efficient installation using a standard 2.5 mm hex drive, reducing assembly time and tool wear
• Reliable thread engagement with coarse M4 x 0.7 mm fully threaded design and Class 6g fit, minimizing cross-threading risks
• Consistent performance and interchangeability through compliance with DIN 7991/ISO 10642 standards across global applications
• Environmental and regulatory compliance meeting RoHS 3 and REACH requirements for safe use in regulated industries

Professional Applications & Engineering Value

These M4 flat head screws deliver critical engineering solutions where high-strength fastening and flush surface requirements intersect. The black-oxide alloy steel construction provides excellent corrosion protection while maintaining the Class 10.9 strength rating (120,000 psi tensile strength, Rockwell C32 hardness) needed for structural applications in machinery, automotive assemblies, and industrial equipment. The fully threaded coarse pitch design (M4 x 0.7mm) ensures maximum thread engagement and vibration resistance, while the 90° countersink angle creates seamless integration into prepared surfaces. Engineered to DIN 7991/ISO 10642 specifications, these metric screws offer reliable performance in precision manufacturing environments where dimensional accuracy and standardized components are essential for maintenance and assembly efficiency.

Specification Summary & Compliance

This M4 x 0.7mm x 20mm flat head screw features Class 6g thread tolerance with right-hand coarse threading and full thread coverage. Manufacturing complies with DIN 7991/ISO 10642 standards for dimensional accuracy and performance. The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.