S-91294A537 M4 x 50 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 with Class 10.9 high-strength alloy steel, providing reliable performance under heavy loads and reducing fastener failure risks.
- Corrosion-resistant black-oxide coating enhances longevity in harsh industrial environments, minimizing maintenance needs.
- Precise 90° countersink angle and flat head design ensures a flush, secure fit, improving assembly aesthetics and safety.
- Fully threaded coarse pitch (0.7mm) allows for faster installation and strong holding power in various materials.
- Hex drive (2.5mm) enables easy, high-torque installation with standard tools, speeding up assembly processes.
- High tensile strength (120,000 psi) and Rockwell C32 hardness offer superior resistance to wear and deformation in demanding applications.
- Compliance with DIN 7991/ISO 10642 standards guarantees dimensional accuracy and interchangeability for global engineering projects.
Professional Applications & Engineering Value
This M4 flat head screw is engineered from black-oxide alloy steel to address critical industrial challenges, such as vibration loosening and corrosion in machinery, automotive, and construction assemblies. The fully threaded coarse pitch design ensures rapid, secure fastening in metals and composites, while the Class 10.9 strength grade and 120,000 psi tensile strength provide reliable performance under high-stress conditions. Its 90° countersink angle and flat head profile facilitate seamless integration into countersunk holes, reducing protrusion risks and enhancing structural integrity. Ideal for heavy-duty applications, this screw delivers precision, durability, and compliance with international standards, making it a trusted choice for engineers seeking efficiency and long-term reliability.
Specification Summary & Compliance
This fastener features metric threading with a size of M4 x 0.7mm and length of 50mm, adhering to Class 6g thread fit for precise tolerance. It meets DIN 7991 and ISO 10642 specifications for dimensional consistency and performance. Additionally, it is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring environmental safety and regulatory adherence in industrial use.
