S-91294A219 M5 x 40 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance provided by the black-oxide finish on alloy steel, extending service life and maintaining integrity in harsh industrial environments.
• Precise Class 6g thread fit guarantees smooth installation and secure fastening, minimizing assembly time and improving joint reliability.
• High-strength Class 10.9 rating with Rockwell C32 hardness offers excellent durability and resistance to wear, ideal for heavy-duty machinery and structural components.
• Fully threaded coarse pitch design enables quick engagement and strong holding power, streamlining assembly processes in time-sensitive operations.
• Compliance with DIN 7991/ISO 10642 standards ensures consistent quality and interchangeability, facilitating global supply chain integration and reducing procurement risks.
• Hex drive with flat head profile allows for easy installation with standard tools and a flush finish, enhancing aesthetics and safety in visible applications.

Professional Applications & Engineering Value

Engineered for robust performance, this M5 flat head screw in black-oxide alloy steel addresses common industrial challenges like vibration loosening and environmental degradation. The fully threaded design with coarse spacing ensures rapid, secure fastening in materials such as metal and hardened plastics, reducing assembly errors in high-volume production. Its Class 10.9 strength and Rockwell C32 hardness provide critical resistance to shear and tensile stresses, making it ideal for automotive assemblies, machinery frames, and construction equipment where reliability is paramount. By incorporating a hex drive and standardized metric thread, it simplifies maintenance and upgrades, supporting efficient B2B operations in global markets.

Specification Summary & Compliance

This fastener adheres to precise dimensional tolerances, including a Class 6g thread fit per metric standards, ensuring compatibility and performance. It meets DIN 7991 and ISO 10642 specifications for flat head hex screws, with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, guaranteeing safety and sustainability in industrial use.