S-91294A541 M5 x 6 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 10.9 strength rating and 120,000 psi tensile strength for reliable performance in high-stress applications.
• Superior corrosion resistance provided by the black-oxide coating, extending service life in harsh industrial environments.
• Precise flush mounting with standard 90° countersink angle and flat head profile for seamless integration and improved aesthetics.
• Easy installation and removal using a standard 3mm hex drive, reducing assembly time and tool requirements.
• Consistent threading performance with fully threaded M5 coarse pitch (0.8mm) and Class 6g fit ensuring secure fastening and vibration resistance.
• Enhanced durability from Rockwell C32 hardness, maintaining structural integrity under repeated use and mechanical stress.
• Broad compatibility with metric systems and compliance to DIN 7991/ISO 10642 standards for reliable interchangeability.

Professional Applications & Engineering Value

This M5 flat head screw is engineered to address critical fastening challenges in industrial settings, where high tensile strength and corrosion resistance are paramount. The black-oxide alloy steel construction, combined with a Class 10.9 rating, ensures reliable performance in machinery, automotive assemblies, and structural frameworks subjected to dynamic loads. The fully threaded design with coarse pitch and Class 6g thread fit provides excellent grip and vibration dampening, reducing the risk of loosening in high-vibration environments. The 90° countersink angle and flat head profile allow for flush mounting, minimizing protrusions and enhancing safety in confined spaces. Ideal for applications requiring metric screw precision and compliance with international standards, this fastener delivers consistent engineering value by improving assembly efficiency and long-term reliability.

Specification Summary & Compliance

This fastener adheres to precise dimensional tolerances, including Class 6g thread fit for metric threading and a coarse pitch of 0.8mm. It conforms to DIN 7991 and ISO 10642 specifications, ensuring consistent quality and performance. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible and safe industrial use.