S-90550A670 10-32 x 1 1/2" 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, ideal for harsh industrial environments and outdoor applications.
- Enhanced assembly precision through Class 3A thread fit and UNF fine threading, ensuring tight, secure connections with minimal vibration loosening.
- Efficient installation and removal with the 1/8" hex drive, allowing high torque application without cam-out in confined spaces.
- Reliable pressure equalization via the vented design, preventing moisture and contaminant buildup in critical assemblies.
- Optimized flush mounting with the standard flat head profile and 82° countersink angle, providing a smooth surface finish.
- Controlled thread engagement through partial threading, reducing the risk of cross-threading in pre-tapped holes.
- Full regulatory compliance meeting ASME B18.3, ASTM F879, and MIL-DTL-18240 standards for guaranteed interchangeability and performance.
Professional Applications & Engineering Value
Engineered for precision-driven industries, this 10-32 UNF flat head screw delivers exceptional performance in aerospace, electronics, and machinery assembly where corrosion resistance and dimensional accuracy are paramount. The 18-8 Stainless Steel material provides lasting durability against chemical exposure and atmospheric corrosion, while the vented design addresses pressure differential issues in sealed systems. With Class 3A thread fit and UNF fine threads, it maintains consistent clamping force in high-vibration environments, reducing maintenance frequency. The hex drive configuration enables reliable installation in recessed applications, making it ideal for countersunk mounting in panels, enclosures, and precision instruments where flush surfaces are critical.
Specification Summary & Compliance
This screw maintains Class 3A thread fit per UNF standards with precise dimensional control (1-1/2" length, 10-32 thread size). Manufacturing complies with ASME B18.3, ASTM F879, and MIL-DTL-18240 specifications. It is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring environmental safety and material traceability.
