S-91294A571 M24 x 90 mm DIN 7991 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 10.9 strength rating and 120,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance through black-oxide coating on alloy steel, extending service life in demanding industrial environments
• Optimized installation efficiency with 14mm hex drive and standard flat head profile for secure, flush-mounted assemblies
• Consistent thread engagement with fully threaded M24x3mm coarse threads and Class 6g fit ensuring vibration-resistant connections
• Enhanced durability from Rockwell C32 hardness, maintaining structural integrity under repeated mechanical stress
• Regulatory compliance assurance meeting DIN 7991 specifications while being RoHS 3 and REACH compliant for global market acceptance
• Versatile industrial application with 90mm length and right-hand threading suitable for machinery, structural assemblies, and heavy equipment

Professional Applications & Engineering Value

These M24 flat head screws deliver critical engineering solutions for industrial applications requiring both high strength and corrosion protection. The black-oxide alloy steel construction combined with Class 10.9 strength rating addresses common failure points in heavy machinery, structural steel connections, and manufacturing equipment where vibration resistance and tensile strength are paramount. The fully threaded design with coarse 3mm pitch ensures maximum thread engagement in various materials, while the standard flat head profile with 60° countersink angle provides secure, flush mounting that prevents snagging in moving parts. Particularly valuable in DIN 7991 certified applications, these screws maintain dimensional precision and performance consistency across production runs, making them ideal for OEM manufacturing, industrial maintenance, and construction projects demanding reliable fastening solutions.

Specification Summary & Compliance

Manufactured to precise metric dimensions with Class 6g thread fit tolerance ensuring consistent threading performance. Complies with DIN 7991 specifications for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements for environmental safety. The Class 10.9 strength grade corresponds to minimum tensile strength of 120,000 psi with Rockwell C32 hardness, validated through standardized testing protocols.