S-91294A599 M20 x 110 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength with Class 10.9 rating (120,000 psi) for reliable performance in high-stress applications.
• Superior corrosion resistance from black-oxide coating, extending service life in harsh industrial environments.
• Precise Class 6g thread fit ensures smooth installation and secure fastening with minimal risk of cross-threading.
• Optimized 90° countersink angle provides a flush finish, reducing protrusion and improving safety in assembled structures.
• Robust Rockwell C32 hardness maintains structural integrity under heavy loads and repeated use.
• Convenient 12mm hex drive allows for high-torque installation with standard tools, speeding up assembly processes.
• Full threading along the 110mm length offers maximum grip and adjustability in deep or variable material thicknesses.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this M20 flat head screw combines black-oxide alloy steel and Class 10.9 strength to address critical challenges like vibration loosening and material fatigue. The coarse 2.5mm pitch metric thread and fully threaded design enhance load distribution, making it ideal for heavy machinery, structural steelwork, and automotive assemblies where consistent clamping force is essential. Its compliance with DIN 7991/ISO 10642 standards ensures dimensional accuracy, while the right-hand thread and hex drive simplify maintenance in tight spaces, reducing downtime and improving operational efficiency.

Specification Summary & Compliance

This fastener adheres to precise Class 6g thread fit tolerances per metric standards, with a 90° countersink angle and M20 x 2.5mm coarse thread for optimal engagement. Manufactured in accordance with DIN 7991/ISO 10642 specifications, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory approval for global industrial use.