S-97595A343 M2.5 x 6 mm DIN 7991 Brass Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass construction, ensuring long-term reliability in demanding environments.
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness, providing reliable performance under load.
• Secure and precise installation enabled by the 1.5 mm hex drive, minimizing stripping and ensuring consistent torque application.
• Optimized flush mounting with a standard 90° countersink angle and flat head design for a smooth, professional finish.
• Accurate and reliable threading with Class 6g thread fit and coarse 0.45 mm pitch, ensuring easy engagement and vibration resistance.
• Full-length threading (M2.5 x 6mm) for maximum grip and holding power across the entire fastener length.
• Compliance with international standards including DIN 7991, RoHS 3, and REACH, guaranteeing safety and regulatory acceptance.

Professional Applications & Engineering Value

This M2.5 brass flat head screw is engineered to address common industrial challenges such as corrosion, vibration loosening, and assembly precision. The brass material offers excellent resistance to rust and galvanic corrosion, making it ideal for electrical components, marine hardware, and plumbing systems. The hex drive and fully threaded design ensure secure fastening in soft materials or pre-tapped holes, reducing the risk of pull-out. With its Class 6g thread fit and coarse thread spacing, it provides quick assembly and reliable performance in high-vibration environments like machinery, automotive assemblies, and consumer electronics. The 90° countersink angle allows for a flush surface finish, essential for applications where protruding hardware is not acceptable.

Specification Summary & Compliance

This metric flat head screw features precise M2.5 x 0.45 mm coarse threads with a Class 6g thread fit per ISO standards, ensuring dimensional accuracy and interchangeability. Manufactured in compliance with DIN 7991 specifications, it meets rigorous mechanical and dimensional requirements. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(a)-I for lead as an alloying element and is REACH (EC 1907/2006) compliant, adhering to environmental and safety regulations for industrial use.