S-91294A024 M2.5 x 20 mm 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 tensile strength (120,000 psi) for reliable performance in demanding applications.
- Superior corrosion resistance due to the black-oxide coating on alloy steel, extending service life in harsh environments.
- Precise installation and removal enabled by the 1.5 mm hex drive, ensuring secure fastening without stripping.
- Optimized thread engagement with coarse M2.5 x 0.45 mm threads and Class 6g fit, providing strong hold and vibration resistance.
- Versatile partial threading allowing unthreaded shank sections for alignment and shear strength in assembled components.
- Flush mounting capability with the standard 90° flat head profile, ideal for applications requiring a smooth surface finish.
- Compliance with environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use in global markets.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these M2.5 metric flat head screws address critical challenges in machinery, automotive, and electronics assembly. The black-oxide alloy steel construction combined with Class 10.9 strength ensures resistance to high stress and fatigue, while the partially threaded design enhances clamping force and reduces loosening under vibration. The hex drive facilitates quick, tool-friendly installation in confined spaces, and the coarse thread with Class 6g fit guarantees consistent performance in varied materials. This makes them a reliable choice for engineers seeking durable, compliant fasteners that meet rigorous operational demands.
Specification Summary & Compliance
This flat head screw features precise metric threading (M2.5 x 0.45 mm) with a Class 6g thread fit for standard tolerance, ensuring compatibility in industrial applications. It adheres to manufacturing norms for right-hand coarse threads and a 90° countersink angle. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming adherence to environmental and safety regulations without restricted substances.
