S-91263A411 M2 x 4 mm DIN 7991 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional tensile strength of 170,000 PSI ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
- Superior hardness rating of Rockwell C39 provides excellent resistance to wear and deformation, extending the screw's service life in industrial environments.
- Zinc-plated alloy steel construction offers enhanced corrosion resistance, protecting against rust and maintaining integrity in various operating conditions.
- Precision Class 5g6g thread fit guarantees consistent, secure fastening with minimal play, ideal for applications requiring exact alignment and vibration resistance.
- Fully threaded design with coarse pitch allows for quicker installation and stronger holding power in a wide range of materials.
- Compact 1mm hex drive and flat head profile enables easy access in tight spaces and provides a flush finish for streamlined assemblies.
- Compliance with DIN 7991, RoHS 3, and REACH ensures adherence to international quality and environmental standards, facilitating use in regulated industries.
Professional Applications & Engineering Value
Engineered for precision and durability, these M2 flat head screws are ideal for high-stress applications in electronics, machinery, and automotive assemblies where space is limited and reliability is critical. The zinc-plated alloy steel material combats corrosion, while the Class 12.9 strength grade and 170,000 PSI tensile strength handle intense mechanical loads without stripping or breaking. The fully threaded metric design with coarse 0.4mm pitch ensures rapid, secure fastening in metals and plastics, reducing assembly time and maintenance needs. By meeting DIN 7991 standards, these screws deliver consistent performance in industrial settings, minimizing downtime and enhancing product longevity.
Specification Summary & Compliance
This M2 x 0.4mm flat head screw features a length of 4mm, Class 5g6g thread fit for precise tolerance, and a 90° countersink angle. It complies with DIN 7991 specifications for dimensional accuracy and threading, and is verified to be RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring safe and environmentally responsible use in global markets.
