S-91304A114 M4 x 16 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 10.9 strength rating and 120,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through blue-dyed zinc plating that protects against rust and extends service life
• Precision engineering with Class 6g thread fit and coarse threading for quick, secure installation and vibration resistance
• Optimal flush mounting with standard 90° countersink angle and flat head design for smooth surface finishes
• Easy installation and removal using standard 2.5mm hex drive tools for efficient maintenance and assembly
• Full thread engagement along the entire 16mm length for maximum holding power and load distribution
• Industry compliance assurance meeting DIN 7991/ISO 10642 specifications for consistent quality and interchangeability

Professional Applications & Engineering Value

These M4 flat head screws deliver exceptional engineering value in industrial settings where vibration resistance and reliable fastening are critical. The blue-dyed zinc-plated alloy steel construction provides superior corrosion protection in harsh environments, while the Class 10.9 strength rating ensures these metric screws maintain integrity under heavy loads. The coarse thread pitch (0.7mm) enables quick installation and prevents loosening in vibrating machinery, making them ideal for industrial assembly, machinery manufacturing, and equipment maintenance. The fully threaded design and hex drive convenience allow for precise torque application and secure fastening in confined spaces, solving common challenges in precision engineering applications.

Specification Summary & Compliance

Manufactured to exacting Class 6g thread tolerance standards with M4 x 0.7mm coarse threading and right-hand thread direction. These flat head screws strictly comply with DIN 7991/ISO 10642 specifications for dimensional accuracy and performance. The fasteners are fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety regulations. With Rockwell C32 hardness and precise 16mm length dimensions, these screws deliver consistent performance across industrial applications requiring metric fastening solutions.