S-91304A116 M4 x 25 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional strength and durability with Class 10.9 alloy steel construction, capable of withstanding high-stress applications and providing reliable long-term performance.
• Superior corrosion resistance thanks to the blue-dyed zinc plating, which protects against rust and extends the screw's service life in harsh environments.
• Secure and efficient installation with a 2.5mm hex drive, allowing for high torque application and reducing the risk of stripping during assembly.
• Maximum holding power and stability due to fully threaded design and coarse M4 x 0.7mm thread pitch, ensuring a tight, secure fit in various materials.
• Precise flush mounting with a standard flat head profile and 90° countersink angle, ideal for applications where a smooth surface finish is required.
• Guaranteed dimensional accuracy and interchangeability, manufactured to meet DIN 7991/ISO 10642 standards for consistent quality and fit.
• Compliance with stringent environmental regulations, including RoHS 3 and REACH, ensuring safe and sustainable use in industrial settings.

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these M4 flat head screws provide a robust fastening solution where high tensile strength and corrosion resistance are critical. The Class 10.9 alloy steel core, combined with a blue-dyed zinc-plated finish, effectively counters common issues like material fatigue and environmental degradation in machinery, automotive assemblies, and structural frameworks. The fully threaded metric design with a coarse pitch ensures rapid installation and superior vibration resistance, reducing maintenance needs. With a 2.5mm hex drive, these screws facilitate quick, secure tightening in confined spaces, enhancing assembly efficiency while meeting international standards like DIN 7991/ISO 10642 for reliability in global supply chains.

Specification Summary & Compliance

This screw features precise M4 x 0.7mm coarse threads with a Class 6g thread fit for accurate engagement, and is fully compliant with DIN 7991/ISO 10642 manufacturing specifications. It adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance in industrial markets.