S-92210A166 8-32 x 11/16" ASME B18.3, ASTM F879 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
• Exceptional mechanical strength with a tensile strength of 70,000 psi and Rockwell B55 hardness for high-stress applications.
• Precise and reliable fastening achieved through Class 3A thread fit, minimizing the risk of loosening under vibration.
• Efficient installation and removal with a 3/32" hex drive, providing a secure grip and reducing tool slippage.
• Optimal flush mounting due to the standard flat head profile and 82° countersink angle for a clean, finished appearance.
• Broad compatibility with UNC coarse threading and 8-32 size, making it versatile for various industrial assemblies.
• Full regulatory compliance with ASME B18.3, ASTM F879, RoHS 3, and REACH, ensuring safety and environmental standards are met.

Professional Applications & Engineering Value

This 8-32 UNC flat head screw is engineered to address critical fastening challenges in demanding industrial settings. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to oxidation and chemical exposure, making it ideal for applications in machinery, automotive, and outdoor equipment where durability is paramount. The Class 3A thread fit and coarse threading ensure a tight, secure connection that withstands vibration and dynamic loads, reducing maintenance needs. Its hex drive design allows for high torque application, facilitating quick and reliable installation in confined spaces. These screws are particularly valuable in assemblies requiring a flush surface, such as panels and enclosures, enhancing both safety and aesthetics.

Specification Summary & Compliance

This screw features precise Class 3A thread fit per UNC standards, with a thread size of 8-32 and coarse spacing for robust engagement. Dimensions include a length of 11/16", head diameter of 0.359", and drive size of 3/32". It is manufactured in compliance with ASME B18.3 and ASTM F879 specifications, ensuring consistent quality and performance. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, confirming its safety for use in various industries without hazardous substances.