S-92480A863 2-56 x 1/4" ASME B18.6.3 Brass Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with brass construction for long-lasting performance in demanding environments
• High tensile strength of 50,000 psi ensures reliable fastening under mechanical stress
• Class 2A thread fit provides consistent, secure engagement with standard UNC nuts and threaded holes
• 82° countersink angle enables flush mounting for clean, professional finishes
• Rockwell B50 hardness maintains thread integrity through repeated installations
• Phillips No. 1 drive offers efficient installation with common tools while reducing cam-out risk
• Full threading along the 1/4" length maximizes grip strength in various material thicknesses

Professional Applications & Engineering Value

These brass flat head screws with 2-56 UNC coarse threading deliver exceptional value in precision assemblies where corrosion resistance and electrical conductivity are critical. The combination of Rockwell B50 hardness and 50,000 psi tensile strength ensures reliable performance in vibration-prone applications while preventing galling common in softer materials. The standard 82° countersink and flat head design create seamless surfaces in electronic enclosures, instrumentation panels, and marine hardware. The Phillips drive system with No. 1 size provides efficient installation in confined spaces, making these fully threaded screws ideal for maintenance-critical industrial equipment where disassembly and reassembly are frequent.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerance for consistent performance in inch-system applications. These screws feature coarse thread spacing with right-hand UNC threading and comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet international standards for hazardous substance restrictions and chemical safety in industrial components.