S-96640A223 0-80 x 5/16" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide 18-8 Stainless Steel construction, ideal for harsh environments and reducing replacement frequency.
• High tensile strength of 80,000 psi ensures reliable fastening under demanding loads, minimizing failure risks in critical assemblies.
• Precise Class 2A thread fit guarantees smooth installation and secure engagement, reducing cross-threading and assembly time.
• Fully threaded design provides consistent holding power along the entire length, enhancing joint stability in thin materials.
• 82° countersink angle allows for a flush finish in standard countersunk holes, improving aesthetics and reducing snag hazards.
• Compliance with ASME B18.6.3, RoHS, and REACH ensures consistent quality, safety, and environmental responsibility for global supply chains.
• Rockwell B80 hardness offers excellent durability and wear resistance, extending service life in high-vibration applications.

Professional Applications & Engineering Value

These 0-80 UNF flat head screws are engineered for precision applications where space constraints and material integrity are critical. The Black-Oxide 18-8 Stainless Steel provides enhanced corrosion resistance, making them suitable for electronics, aerospace, and medical devices exposed to moisture or chemicals. The fine UNF threads and Class 2A fit ensure tight, reliable fastening in thin-section components, reducing the risk of stripping in soft materials. With an 82° countersink angle and Phillips No. 0 drive, installation is streamlined for flush mounting in confined areas, while the fully threaded design maximizes grip in assemblies requiring uniform clamping force. Ideal for industrial machine screws in OEM production, they address common pain points like thread galling and premature failure, delivering consistent performance in high-stress environments.

Specification Summary & Compliance

This screw adheres to Class 2A thread fit per UNF standards, ensuring precise dimensional accuracy for reliable assembly. It meets ASME B18.6.3 specifications for consistency in manufacturing and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it supports environmental and safety regulations, making it suitable for global industrial applications.