S-90550A410 8-32 x 3/8" ASME B18.3, ASTM F879, MIL-DTL-18240 Venting Stainless Steel Hex-Drive Flat Head Screws
Venting Stainless 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
- Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in demanding environments
- Precise flush installation enabled by the standard flat head profile and 82° countersink angle for seamless surface finishing
- Enhanced installation efficiency through the hex drive design that prevents cam-out and allows high-torque application
- Reliable thread engagement with Class 3A thread fit ensuring tight tolerances and vibration resistance in critical assemblies
- Optimized pressure equalization via the vented feature that prevents pressure buildup in sealed applications
- Broad industrial compatibility with UNC coarse threads providing quick assembly and reduced cross-threading risks
- Full regulatory compliance meeting RoHS 3 and REACH environmental standards for global supply chain integration
Professional Applications & Engineering Value
These 8-32 UNC flat head screws deliver exceptional engineering value in applications requiring reliable fastening with surface-flush requirements. The 18-8 stainless steel material provides excellent corrosion resistance, making them ideal for electronics, aerospace components, and industrial equipment exposed to moisture or chemicals. The combination of hex drive and fully threaded design ensures maximum grip and installation torque, while the vented feature addresses pressure differential issues in sealed systems. With coarse threading and Class 3A thread fit, these screws maintain secure connections in high-vibration environments, reducing maintenance needs and improving assembly line efficiency across manufacturing and precision engineering sectors.
Specification Summary & Compliance
This flat head screw features precision UNC coarse threads with Class 3A thread fit for superior dimensional accuracy. Manufacturing complies with ASME B18.3, ASTM F879, and MIL-DTL-18240 specifications, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental standards for hazardous substance restrictions.
