S-92480A847 5/16"-18 x 3/4" ASME B18.6.3 Brass Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass construction, ensuring long-term reliability in harsh environments
• Excellent mechanical strength with 50,000 psi tensile strength and Rockwell B50 hardness for demanding applications
• Precision thread engagement with Class 2A thread fit and coarse UNC threading for secure fastening and easy installation
• Optimal flush mounting featuring standard 82° countersink angle and flat head profile for seamless surface integration
• Enhanced drive efficiency with No. 4 Phillips drive providing reliable torque transmission and reduced cam-out
• Full threading coverage across the entire 3/4" length for maximum grip strength and load distribution
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

These 5/16"-18 UNC brass flat head screws deliver exceptional performance in applications where corrosion resistance and precise flush mounting are critical. The brass material provides inherent protection against oxidation and galvanic corrosion, making these Phillips drive screws ideal for electrical enclosures, marine equipment, and plumbing systems. The standard 82° countersink angle ensures perfect seating in prepared holes, while the coarse UNC threading offers superior holding power in various substrates. With full threading along the entire 3/4" length, these fasteners distribute clamping forces evenly, preventing material deformation and maintaining joint integrity in industrial assembly applications requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

Manufactured to exacting standards with Class 2A thread fit tolerance for consistent engagement and UNC coarse thread spacing for optimal performance in various materials. These screws comply with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) with exemption 6(a)-I for lead as an alloying element and REACH (EC 1907/2006) compliance, ensuring safe use in regulated industries and applications.