S-91294A514 M20 x 40 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 tensile rating (120,000 psi) and Rockwell C32 hardness for reliable performance in demanding applications.
• Superior corrosion resistance provided by the black-oxide finish on alloy steel, extending service life in various industrial environments.
• Secure and efficient installation with a 12mm hex drive and fully threaded M20 coarse pitch design, ensuring quick fastening and high clamp load.
• Perfect flush mounting achieved through the standard 90° countersink angle and flat head profile, ideal for applications requiring a smooth surface.
• Precise thread fit with Class 6g tolerance, guaranteeing consistent engagement and reducing the risk of cross-threading.
• Broad industrial compatibility due to compliance with DIN 7991/ISO 10642 standards, ensuring interchangeability and reliability.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting stringent regulatory requirements for safe use.

Professional Applications & Engineering Value

This M20 flat head screw is engineered to address critical challenges in heavy-duty industrial settings, such as machinery assembly, structural frameworks, and automotive components. The black-oxide alloy steel construction offers enhanced resistance to rust and wear, while the Class 10.9 strength grade ensures it can withstand high vibrational and tensile stresses without failure. The fully threaded coarse pitch design allows for rapid installation and superior holding power in materials like metal and hardened plastics. With a 90° countersink angle and hex drive, it provides a secure, flush fit that minimizes protrusion and improves safety in dynamic environments. Ideal for applications requiring reliable, high-strength fastening that complies with international standards like DIN 7991 and ISO 10642, this screw delivers consistent performance in manufacturing, construction, and maintenance operations.

Specification Summary & Compliance

This fastener features precise metric coarse threading (M20 x 2.5mm) with a Class 6g thread fit for accurate engagement. It adheres to DIN 7991 and ISO 10642 specifications, ensuring dimensional consistency and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for global industrial use.