S-92210A162 6-40 x 1/2" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws
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 and Passivated finish, ideal for harsh environments.
- High tensile strength of 70,000 psi ensures reliable, long-lasting fastening under heavy loads.
- Precision Class 3A thread fit provides secure engagement and reduces the risk of cross-threading.
- Fully threaded design offers maximum grip and uniform stress distribution along the entire length.
- Standard 82° countersink angle allows for a flush, professional finish in countersunk holes.
- Hex drive (5/64") enables high torque application and reduces tool slippage during installation.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees quality and environmental safety for industrial use.
Professional Applications & Engineering Value
These 6-40 UNF Flat Head Screws are engineered to address critical fastening challenges in demanding industrial settings. The 18-8 Stainless Steel construction, combined with a Passivated finish, provides excellent resistance to oxidation and chemical exposure, making them suitable for applications in machinery, automotive assemblies, and electronic enclosures where moisture or corrosive agents are present. The fine UNF threads and Class 3A fit ensure tight, vibration-resistant connections, minimizing loosening in dynamic environments. With a Rockwell B55 hardness and high tensile strength, these screws maintain integrity under stress, while the flat head with 82° countersink offers a smooth, low-profile installation that enhances both safety and aesthetics in precision equipment.
Specification Summary & Compliance
This screw features a 6-40 UNF thread size with Class 3A precision fit and fully threaded design for consistent performance. Dimensions include a 1/2" length, 0.307" head diameter, and 82° countersink angle. It meets ASME B18.3 specifications for dimensional accuracy and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to industry and environmental standards.
