S-91263A821 M3 x 5 mm DIN 7991, ISO 10642 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 durability and corrosion resistance with zinc-plated alloy steel construction, ideal for harsh industrial environments
- Superior load-bearing capacity thanks to Class 10.9 high tensile strength (120,000 psi) and Rockwell C32 hardness
- Reliable and secure fastening ensured by fully threaded M3 coarse thread with Class 6g fit for consistent performance
- Easy and precise installation with 2 mm hex drive and standard flat head profile for flush mounting
- Broad compatibility with metric coarse threading (0.5 mm pitch) and right-hand thread direction for versatile applications
- Confident compliance meeting DIN 7991/ISO 10642 standards, RoHS 3, and REACH regulations for quality assurance
- Optimized for space-constrained designs with compact 5 mm length and 90° countersink angle
Professional Applications & Engineering Value
This M3 flat head screw delivers critical reliability in demanding industrial applications where vibration resistance and structural integrity are paramount. The zinc-plated alloy steel construction provides excellent corrosion protection, extending service life in challenging environments. Its Class 10.9 strength grade and Rockwell C32 hardness ensure the fastener maintains clamp load under high stress, preventing loosening in machinery, automotive assemblies, and heavy equipment. The fully threaded design with coarse thread spacing offers superior holding power in various materials, while the hex drive and flat head enable quick, flush installations that meet stringent DIN 7991/ISO 10642 specifications for precision engineering projects.
Specification Summary & Compliance
This fastener features precise metric threading with M3 x 0.5 mm coarse thread, Class 6g thread fit for standard tolerance, and 5 mm length. It conforms to DIN 7991/ISO 10642 manufacturing standards, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial supply chains requiring verified material safety and sustainability.
