S-96640A298 2-56 x 7/16" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh environments and reducing replacement costs.
• High tensile strength of 80,000 psi ensures reliable, long-lasting fastening under significant load and stress.
• Precise Class 2A thread fit guarantees smooth installation and secure engagement, minimizing the risk of cross-threading.
• Standard 100° countersink angle allows the screw to sit flush with the material surface for a clean, professional finish.
• Robust Rockwell B80 hardness provides excellent durability and resistance to wear during installation and use.
• Full threading along the 7/16" length offers maximum grip and holding power across the entire fastener.
• Compliance with ASME B18.6.3, RoHS 3, and REACH ensures product reliability and adherence to international safety and environmental standards.

Professional Applications & Engineering Value

These 2-56 UNC Flat Head Phillips Screws are engineered to address common industrial challenges such as material fatigue and environmental degradation. The Black-Oxide 18-8 Stainless Steel construction provides a robust defense against corrosion, making them perfect for applications in electronics, automotive assemblies, and outdoor equipment where moisture and chemicals are present. The coarse UNC thread and Class 2A fit ensure quick, secure fastening in a variety of materials, reducing assembly time and improving production efficiency. The flat head design with a 100° countersink creates a smooth, flush finish, essential for applications where aerodynamics or safety require no protruding components. This combination of material strength, precise thread form, and reliable surface treatment delivers consistent performance in demanding industrial fastening scenarios.

Specification Summary & Compliance

This product features a 2-56 UNC coarse thread with a Class 2A thread fit, ensuring dimensional accuracy and compatibility with standard nuts and tapped holes. Manufacturing and quality are governed by ASME B18.6.3 specifications. The screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming they are free from hazardous substances and safe for use in various global markets.