S-91263A872 M4 x 25 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 – Class 10.9 rating and 120,000 psi tensile strength ensure reliable performance under high-stress conditions.
- Superior Corrosion Resistance – Zinc-plated alloy steel construction provides durable protection against rust in harsh industrial environments.
- Precise Hex Drive Installation – 2.5 mm hex drive allows for secure, slip-free tightening with standard tools, reducing assembly time.
- Optimized Thread Engagement – M4 coarse thread with 0.7 mm pitch and Class 6g fit offers quick, stable fastening in various materials.
- Flush-Mount Design – Flat head with 90° countersink angle sits seamlessly in pre-drilled holes, preventing surface protrusion.
- Full-Length Threading – 25 mm fully threaded shank maximizes grip and distribution of clamping force along the entire length.
- Regulatory Compliance Assurance – Meets DIN 7991, RoHS 3, and REACH standards for safe, environmentally responsible use.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this M4 flat head screw combines zinc-plated alloy steel and a Class 10.9 strength grade to address critical challenges like vibration loosening and material fatigue. The fully threaded coarse metric thread ensures rapid installation and robust holding power in metal assemblies, machinery, and structural frameworks. With a hex drive design, it enables high-torque application without cam-out, reducing the risk of fastener failure. Compliant with DIN 7991, it guarantees dimensional accuracy and interchangeability, making it a trusted choice for OEMs and maintenance teams seeking durability and regulatory adherence.
Specification Summary & Compliance
This flat head screw features M4 x 0.7 mm coarse threads with Class 6g tolerance for precise fit, and is manufactured to DIN 7991 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for industrial use.
