S-91263A876 M4 x 45 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 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 provided by zinc-plated alloy steel, extending service life in demanding industrial environments.
- Precise and secure fastening ensured by Class 6g thread fit and coarse M4 x 0.7mm thread for quick assembly and vibration resistance.
- Efficient installation with standard tools using the 2.5mm hex drive, compatible with common industrial equipment.
- Flush surface finish due to the flat head design and 90° countersink angle, ideal for applications requiring a smooth profile.
- Full thread engagement along the 45mm length for maximum grip and distribution of clamping force.
- Compliance with international standards including DIN 7991, RoHS 3, and REACH, ensuring safety and regulatory adherence.
Professional Applications & Engineering Value
This M4 flat head screw is engineered to address critical challenges in industrial assembly, such as mechanical stress and environmental exposure. Constructed from zinc-plated alloy steel, it offers robust protection against rust and wear, making it suitable for machinery, automotive components, and structural frameworks. The Class 10.9 strength grade and fully threaded metric design provide high tensile integrity, preventing loosening under vibration. With a coarse thread pitch and hex drive, it enables rapid, secure installation in metals and composites, reducing downtime. Adherence to DIN 7991 ensures dimensional accuracy, while its flat head profile allows for seamless integration in countersunk holes, enhancing both safety and aesthetics in professional settings.
Specification Summary & Compliance
This fastener maintains precise Class 6g thread fit per ISO metric standards, with a right-hand coarse thread (M4 x 0.7mm) and 45mm length. It conforms to DIN 7991 manufacturing specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.
