S-91263A830 M4 x 16 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 grade and 120,000 psi tensile strength for reliable performance in high-stress applications.
• Superior corrosion resistance due to zinc-plated alloy steel construction, extending service life in harsh industrial environments.
• Precise and secure fastening with a 2.5mm hex drive and fully threaded M4 coarse thread design, ensuring easy installation and vibration resistance.
• Optimized flush mounting featuring a standard flat head profile and 90° countersink angle for seamless integration into assembled surfaces.
• Consistent dimensional accuracy with Class 6g thread fit and compliance to DIN 7991/ISO 10642 standards, guaranteeing interchangeability and fit.
• Enhanced durability from Rockwell C32 hardness, reducing wear and deformation under repeated use.
• Environmentally responsible sourcing as RoHS 3 and REACH compliant, meeting global regulatory requirements for safe industrial use.

Professional Applications & Engineering Value

This M4 flat head screw is engineered to address critical challenges in industrial assembly, where high tensile strength and reliable fastening are paramount. The zinc-plated alloy steel material provides excellent resistance to corrosion and oxidation, making it ideal for machinery, automotive components, and outdoor equipment exposed to moisture or chemicals. The fully threaded design with coarse metric threading ensures maximum grip and load distribution, preventing loosening under dynamic loads. With a 2.5mm hex drive and flat head profile, it allows for efficient installation in tight spaces and flush surface mounting, reducing protrusion risks. Complying with DIN 7991 and ISO 10642, this screw delivers consistent performance in heavy-duty applications, from structural frameworks to precision engineering assemblies, enhancing operational safety and longevity.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including Class 6g thread fit for metric coarse threads (M4 x 0.7mm) and a length of 16mm. It meets manufacturing specifications per DIN 7991 and ISO 10642, ensuring high accuracy and reliability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms its environmental safety and regulatory alignment for industrial use.