S-96640A294 2-56 x 3/16" 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 industrial environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable, long-term fastening
• Optimized flush mounting thanks to the standard flat head profile and 100° countersink angle for a clean, secure finish
• Efficient installation and removal with the No. 1 Phillips drive, reducing tool slippage and assembly time
• Reliable coarse threading (UNC) and Class 2A thread fit for quick engagement and vibration resistance in various materials
• Full threading along the 3/16" length ensures maximum grip and holding power across the entire fastener
• Compliance with major industry standards including ASME B18.6.3, RoHS 3, and REACH for guaranteed quality and safety

Professional Applications & Engineering Value

This 2-56 UNC Flat Head Phillips Machine Screw is engineered to address critical challenges in precision assembly and demanding environments. The Black-Oxide 18-8 Stainless Steel construction provides excellent corrosion resistance, making it suitable for applications exposed to moisture, chemicals, or outdoor conditions, such as electronics enclosures, machinery panels, and automotive components. The fully threaded design and coarse UNC thread ensure rapid installation and high pull-out strength, reducing the risk of stripping in softer materials or under vibration. With its flat head and 100° countersink, it sits flush with surfaces, preventing snagging and maintaining aerodynamic or aesthetic profiles. These screws are ideal for industries requiring reliable, RoHS 3 and REACH compliant fasteners that combine durability with regulatory adherence, minimizing downtime and maintenance costs.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including a Class 2A thread fit for consistent engagement and UNC coarse threads (2-56 size) with right-hand direction. It is manufactured in compliance with ASME B18.6.3 specifications, ensuring interoperability and reliability. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements, confirming it is free from hazardous substances and safe for industrial use. Key attributes include a length of 3/16", full threading, and a hardness of Rockwell B80, supporting its 80,000 psi tensile strength for robust performance.