S-90550A360 6-32 x 1" ASME B18.3, ASTM F879, MIL-DTL-18240 Venting Stainless Steel Hex-Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Precise thread engagement with Class 3A fit, ensuring reliable fastening and vibration resistance
• Enhanced installation control through the 5/64" hex drive, reducing tool slippage and damage
• Effective pressure equalization with vented design, preventing fluid or gas buildup in assemblies
• Flush surface finish with standard 82° countersink angle, maintaining aerodynamic or smooth profiles
• Broad compatibility with UNC coarse threads and 6-32 size, fitting common industrial components
• Full regulatory compliance meeting RoHS 3 and REACH standards, ensuring environmental safety

Professional Applications & Engineering Value

This 6-32 UNC flat head screw is engineered to address critical challenges in precision assembly and demanding environments. The 18-8 stainless steel material provides excellent resistance to corrosion and oxidation, making it suitable for aerospace, electronics, and marine applications where durability is paramount. The vented feature allows for pressure and moisture release, preventing seal failure in enclosed systems. Combined with a hex drive for secure torque application and Class 3A thread fit for tight tolerances, this screw minimizes loosening under vibration and ensures long-term reliability in machinery, enclosures, and instrumentation.

Specification Summary & Compliance

This fully threaded screw adheres to UNC coarse thread standards with a Class 3A thread fit for precise dimensional accuracy. It meets ASME B18.3, ASTM F879, and MIL-DTL-18240 specifications, ensuring consistent manufacturing quality. The product is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, confirming the use of environmentally safe materials without restricted substances.