S-96640A226 0-80 x 1/2" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from Black-Oxide 18-8 Stainless Steel, ideal for harsh environments and extending service life.
• High tensile strength (80,000 PSI) ensures reliable, durable fastening under mechanical stress and vibration.
• Precise Class 2A thread fit with UNF fine threads for secure, anti-loosening connections in precision assemblies.
• Standard 82° countersink angle allows for a flush, low-profile finish, enhancing aesthetics and safety.
• Fully threaded 1/2" length provides maximum grip and uniform clamping force along the entire shank.
• Phillips No. 0 drive offers efficient installation with common tools, reducing assembly time and effort.
• Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards for global supply chains.

Professional Applications & Engineering Value

These 0-80 UNF flat head machine screws are engineered to address critical challenges in precision industries like electronics, aerospace, and medical devices. The Black-Oxide 18-8 Stainless Steel construction provides excellent corrosion resistance, preventing failure in humid or chemically aggressive settings. With a fine UNF thread and Class 2A fit, they ensure tight, vibration-resistant joints in thin materials or small assemblies where loosening could lead to operational faults. The flat head with 82° countersink enables seamless integration into surfaces, minimizing protrusion and avoiding snagging. Ideal for applications demanding high strength-to-weight ratios and regulatory adherence, these screws deliver reliability in tight-tolerance engineering projects.

Specification Summary & Compliance

This screw features a 0-80 UNF fine thread with Class 2A thread fit for precise dimensional accuracy, ensuring consistent performance in assemblies. It is fully threaded and measures 1/2" in length with standard inch system tolerances. Manufactured in compliance with ASME B18.6.3 specifications, it also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting safe and sustainable industrial use.