S-91294A289 M8 x 40 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 tensile strength of 120,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from the black-oxide coating extends service life in harsh industrial environments, minimizing maintenance needs.
- High hardness rating (Rockwell C32) provides excellent wear resistance, maintaining thread integrity over repeated use.
- Class 10.9 strength grade guarantees consistent load-bearing capacity, ideal for critical assemblies requiring dependable fastening.
- Coarse M8 x 1.25mm thread with Class 6g fit allows for quick installation and secure holding power, reducing assembly time.
- Fully threaded design offers uniform grip along the entire 40mm length, enhancing stability in various material thicknesses.
- Hex drive compatibility with a 5mm key enables easy torque application, facilitating efficient maintenance and disassembly.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these M8 flat head screws address common challenges like vibration loosening and environmental degradation. The black-oxide alloy steel construction combats rust and wear, while the Class 10.9 rating ensures they withstand heavy loads in machinery, automotive, and structural applications. The coarse thread and fully threaded profile provide superior pull-out resistance, making them ideal for securing components in metals or composites. Compliant with DIN 7991/ISO 10642, they offer reliable performance in assembly lines where precision and durability are critical, reducing downtime and replacement costs.
Specification Summary & Compliance
This screw features precise Class 6g thread fit and metric coarse threading (M8 x 1.25mm), adhering to DIN 7991 and ISO 10642 standards for dimensional accuracy. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory approval for global industrial use.
