S-90909A485 M8 x 25 mm ISO 7380 Stainless Steel Flanged Button Head Hex-Drive Screws
Stainless Steel Flanged Button Head Hex-Drive 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 corrosion resistance from 316 stainless steel and passivated finish, ideal for harsh chemical and marine environments
- High tensile strength of 70,000 psi ensures reliable performance under mechanical stress and vibration
- Integrated flange design eliminates the need for a separate washer, providing wider bearing surface and faster assembly
- Hex drive (5 mm) allows for high-torque installation with standard tools, reducing slippage and tool wear
- Coarse M8 x 1.25 mm thread (Class 6g) enables quick engagement and reduces cross-threading risks in industrial applications
- Fully threaded shank offers consistent clamping force along the entire 25 mm length for secure fastening
- Compliance with ISO 7380, RoHS 3, and REACH guarantees international quality and environmental safety standards
Professional Applications & Engineering Value
This 316 stainless steel flanged button head screw is engineered to solve critical challenges in demanding sectors. Its superior corrosion resistance, enhanced by the passivated finish, prevents degradation in chemical processing, offshore, and food-grade equipment where exposure to chlorides and acids is common. The flanged design distributes load effectively, minimizing surface damage and maintaining joint integrity under dynamic loads. The M8 coarse thread and hex drive streamline assembly in high-volume production, reducing installation time while the fully threaded body ensures uniform stress distribution. Ideal for machinery, marine hardware, and structural assemblies, this screw delivers long-term reliability and reduces maintenance frequency in corrosive environments.
Specification Summary & Compliance
This metric screw features an M8 x 1.25 mm coarse thread with a Class 6g tolerance for precise fit. Manufactured to ISO 7380 specifications, it ensures dimensional accuracy and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and safe for industrial use globally.
