S-91294A221 M5 x 50 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 10.9 tensile strength (120,000 psi) and Rockwell C32 hardness for reliable performance in high-stress environments.
• Superior corrosion resistance thanks to the black-oxide coating on alloy steel, extending service life in harsh industrial conditions.
• Secure and efficient installation with a hex drive (3 mm) and flat head design, ensuring flush mounting and easy torque application.
• Optimized thread engagement through fully threaded M5 coarse pitch (0.8 mm) right-hand design, providing strong holding power and quick assembly.
• Precise dimensional compliance with DIN 7991/ISO 10642 standards and Class 6g thread fit, ensuring consistent quality and interchangeability.
• Environmental and safety assurance with RoHS 3 and REACH compliance, meeting stringent regulatory requirements for hazardous substances.
• Versatile application fit with a 50 mm length and 90° countersink angle, ideal for various industrial fastening needs.

Professional Applications & Engineering Value

This M5 flat head screw is engineered to address common industrial challenges such as vibration loosening and corrosion in demanding environments. Made from black-oxide alloy steel, it combines high tensile strength (Class 10.9) with enhanced corrosion resistance, reducing maintenance needs and downtime. The fully threaded coarse pitch and hex drive design allow for quick, secure installations in materials like metal and hardened plastics, while the flat head profile ensures a smooth, flush finish. Ideal for heavy-duty applications in machinery, automotive, and construction, this screw delivers reliable fastening that withstands extreme loads and environmental exposure, backed by compliance with DIN 7991/ISO 10642 standards for consistent performance.

Specification Summary & Compliance

This screw features precise metric threading with M5 x 0.8 mm coarse pitch and Class 6g thread fit for accurate engagement. It adheres to DIN 7991/ISO 10642 manufacturing specifications, ensuring dimensional consistency and reliability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it meets environmental regulations for safe use. The Class 10.9 strength grade and fully threaded design further support its suitability for high-performance industrial fastening tasks.