S-90550A630 10-32 x 5/8" 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, ideal for harsh environments and long-term reliability.
- Enhanced torque transmission and reduced stripping thanks to the 1/8" hex drive design for secure fastening.
- Precise thread engagement and vibration resistance achieved with a Class 3A UNF fine thread fit.
- Efficient pressure equalization and debris prevention via the integrated vented feature (0.046" vent diameter).
- Flush mounting and streamlined installation enabled by the standard flat head profile with an 82° countersink angle.
- Full-length holding power from the completely threaded 5/8" shank for consistent clamping force.
- Guaranteed interchangeability and quality through compliance with ASME B18.3, ASTM F879, and MIL-DTL-18240 standards.
Professional Applications & Engineering Value
This 10-32 UNF flat head screw is engineered to address critical challenges in industrial assembly, including corrosion-induced failure and pressure buildup in sealed systems. The 18-8 stainless steel material provides excellent resistance to rust and oxidation, making it suitable for applications in marine, chemical processing, and outdoor equipment. The vented design allows for pressure equalization, preventing seal damage in pneumatic or fluid systems, while the hex drive ensures high torque application without cam-out. Its fully threaded construction and Class 3A thread fit deliver reliable performance in high-vibration environments like machinery and automotive assemblies, ensuring long-term fastener integrity and reduced maintenance needs.
Specification Summary & Compliance
This screw features a 10-32 UNF fine thread with a Class 3A thread fit for precise dimensional accuracy, a right-hand thread direction, and a length of 5/8". It is manufactured in accordance with ASME B18.3, ASTM F879, and MIL-DTL-18240 specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial applications.
