S-91263A452 M5 x 14 mm DIN 7991 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional strength for demanding applications – Class 12.9 rating and 170,000 psi tensile strength ensure reliable performance under high stress and load.
• Superior corrosion resistance – Zinc-plated alloy steel construction provides a durable protective barrier against rust and environmental degradation.
• High hardness for wear resistance – Rockwell C39 hardness minimizes wear and deformation, extending the fastener's service life in rigorous conditions.
• Secure and efficient installation – 3 mm hex drive and flat head design allow for high torque application and a flush, low-profile finish.
• Reliable coarse threading – M5 x 0.8 mm coarse thread with Class 5g6g fit offers excellent grip and resistance to loosening in a wide range of materials.
• Full compliance with industry standards – Manufactured to DIN 7991 specifications, ensuring dimensional accuracy and interchangeability.
• Environmentally responsible manufacturing – Compliant with RoHS 3 and REACH regulations, making them suitable for global supply chains.

Professional Applications & Engineering Value

These M5 flat head screws are engineered for high-strength applications where failure is not an option. The zinc-plated alloy steel provides excellent corrosion resistance, crucial for machinery and equipment exposed to harsh industrial environments. The Class 12.9 strength grade and fully threaded design ensure maximum clamping force and load distribution, solving common issues of joint failure and vibration-induced loosening. The hex drive and standard flat head profile enable quick, secure installation with standard tools, making them ideal for assembly lines and maintenance in automotive, heavy machinery, and construction sectors where reliable fastening solutions are paramount.

Specification Summary & Compliance

This metric screw features an M5 x 0.8 mm coarse thread with a Class 5g6g thread fit per ISO standards, ensuring precise engagement. The dimensional specifications, including the 14mm length and 90° countersink angle, are strictly controlled to meet DIN 7991 manufacturing standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious and regulated markets.