S-92480A866 4-40 x 5/16" ASME B18.6.3 Brass Phillips Flat Head Screws
Brass Phillips Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance thanks to brass construction, ideal for harsh environments and electrical applications
- Effortless installation and removal with the Phillips No. 1 drive, reducing tool slippage and assembly time
- Exceptional holding power from the 50,000 psi tensile strength and Rockwell B50 hardness for reliable, long-term fastening
- Optimal flush seating provided by the 82° countersink angle and standard flat head profile for a smooth, professional finish
- Wide compatibility and secure fit ensured by the 4-40 UNC coarse thread and Class 2A thread fit for general-purpose applications
- Maximum thread engagement from the fully threaded design, enhancing grip strength in various material thicknesses
- Guaranteed quality and safety through compliance with ASME B18.6.3, RoHS 3, and REACH regulations
Professional Applications & Engineering Value
These 4-40 UNC brass flat head screws are engineered to address common industrial challenges such as corrosion in electrical panels, marine components, and plumbing systems. The brass material provides excellent conductivity and resistance to galvanic corrosion, while the fully threaded coarse design ensures rapid installation and superior pull-out resistance in softer materials like plastics and soft metals. The Phillips No. 1 drive minimizes cam-out, enhancing worker efficiency and reducing fastener damage. With a 50,000 psi tensile strength and precise 82° countersink, they deliver reliable performance in applications requiring flush mounting and vibration resistance, making them a top choice for OEM assemblies and maintenance operations.
Specification Summary & Compliance
This product adheres to Class 2A thread fit tolerances for consistent engagement and meets the dimensional requirements of ASME B18.6.3. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for global industrial use.
