S-92480A873 1/4"-20 x 5/8" 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 demanding environments
• Excellent tensile strength of 50,000 psi provides secure fastening for industrial applications requiring robust connections
• Precision Class 2A thread fit guarantees smooth installation and consistent performance in UNC coarse threading applications
• Standard 82° countersink angle enables flush mounting with various materials for clean, professional finishes
• Rockwell B50 hardness rating maintains thread integrity and prevents stripping during repeated installations
• Phillips No. 3 drive design offers efficient torque transfer and reduces cam-out during high-speed assembly operations
• Full threading along the 5/8" length provides maximum engagement strength and versatile positioning options

Professional Applications & Engineering Value

These 1/4-20 UNC brass flat head screws deliver exceptional performance in industrial settings where corrosion resistance and mechanical strength are critical. The brass material inherently resists galvanic corrosion and oxidation, making these flat head Phillips screws ideal for electrical components, marine hardware, and plumbing systems. The coarse thread spacing ensures rapid installation in soft materials while maintaining holding power. With their standard 82° countersink angle, these fasteners sit flush with surfaces, preventing snagging and creating smooth finishes in woodworking, metal fabrication, and machinery assembly. The combination of 50,000 psi tensile strength and Rockwell B50 hardness provides reliable performance in vibration-prone applications, reducing maintenance needs and extending service life.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 standards with precision Class 2A thread fit for consistent dimensional accuracy. Features UNC coarse threading with right-hand direction and 1/4"-20 thread size. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries. The 5/8" length and fully threaded design meet rigorous industrial specifications for reliable performance in professional applications.