S-91263A829 M4 x 12 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 120,000 psi tensile strength, ideal for high-stress assemblies.
• Superior corrosion resistance due to the zinc-plated alloy steel construction, extending service life.
• High-strength Class 10.9 rating ensures reliable performance in demanding mechanical applications.
• Precise Class 6g thread fit for smooth installation and secure, vibration-resistant fastening.
• 90° countersink angle and flat head provide a flush finish, enhancing safety and aesthetics.
• Fully threaded M4 coarse pitch design offers maximum grip and holding power in various materials.
• Hex drive (2.5mm) allows for easy, high-torque installation with standard tools.

Professional Applications & Engineering Value

Engineered for industrial and mechanical systems, this M4 flat head screw addresses critical challenges in high-vibration and heavy-load environments. The zinc-plated alloy steel material provides excellent resistance to corrosion and wear, while the Class 10.9 strength grade ensures it can withstand substantial tensile and shear forces without failure. Its fully threaded coarse pitch (0.7mm) and Class 6g fit enable quick, secure fastening in metals and composites, reducing assembly time and preventing loosening. The 90° countersink and flat head design allow for seamless integration into surfaces, minimizing protrusions in machinery, automotive components, and structural frameworks. Complying with DIN 7991/ISO 10642, it guarantees dimensional accuracy and reliability for engineers and procurement specialists seeking durable, standards-based metric fasteners.

Specification Summary & Compliance

This fastener meets precise dimensional tolerances, including a Class 6g thread fit per metric standards, ensuring compatibility and performance. It is manufactured in accordance with DIN 7991 and ISO 10642 specifications for flat head screws, covering aspects like head diameter (8mm), length (12mm), and thread size (M4 x 0.7mm). Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial use.