S-91294A186 M4 x 6 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with black-oxide coating, ideal for harsh industrial environments
• High tensile strength of 120,000 psi ensures reliable performance under heavy loads
• Fully threaded design provides maximum grip and uniform load distribution
• Precise 90° countersink angle allows for flush mounting and improved aesthetics
• Class 10.9 strength grade delivers superior durability for critical applications
• Rockwell C32 hardness maintains structural integrity under repeated stress
• 2.5mm hex drive enables secure installation with standard tools

Professional Applications & Engineering Value

Engineered for demanding industrial assemblies, these M4 flat head screws combine black-oxide alloy steel construction with Class 10.9 strength to solve common fastening challenges. The fully threaded metric coarse thread (M4 x 0.7mm) ensures rapid installation and vibration resistance in machinery, automotive components, and structural frameworks. With 120,000 psi tensile strength and Rockwell C32 hardness, they prevent stripping and maintain clamp force in high-stress applications. The 90° countersink angle and flat head profile create seamless surfaces while the 2.5mm hex drive provides torque control for precision assembly.

Specification Summary & Compliance

Manufactured to DIN 7991/ISO 10642 standards with Class 6g thread fit tolerance for consistent engagement. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations. Features right-hand coarse threading, 8mm head diameter, and 6mm length for standardized metric applications.