S-92480A553 1/4"-20 x 1 1/2" 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 with brass construction for long-lasting performance in demanding environments
- Excellent tensile strength of 50,000 psi ensures reliable fastening under high-stress industrial applications
- Precise Class 2A thread fit provides smooth installation and secure connections with standard UNC coarse threads
- Optimized Phillips No. 3 drive delivers efficient torque transfer while reducing cam-out risks during installation
- 82° countersink angle enables flush mounting for clean, professional finishes in various materials
- Full threading along 1½" length offers maximum grip and adjustment flexibility in assembly applications
- Comprehensive compliance with ASME B18.6.3, RoHS 3, and REACH ensures meeting strict industrial and environmental standards
Professional Applications & Engineering Value
These brass flat head screws with 1/4"-20 UNC coarse threading provide exceptional value in electrical enclosures, marine hardware, and plumbing systems where corrosion resistance is critical. The Rockwell B50 hardness maintains thread integrity during repeated installations, while the standard 82° countersink ensures seamless flush mounting in metal, wood, and composite materials. The fully threaded design offers superior holding power across the entire fastener length, preventing loosening from vibration - a common challenge in industrial machinery and automotive applications. The Phillips No. 3 drive system enables efficient installation with standard tools, reducing assembly time and improving productivity in manufacturing environments.
Specification Summary & Compliance
This flat head screw features precise Class 2A thread fit per UNC standards with 1/4"-20 coarse threading and right-hand orientation. Manufactured to ASME B18.6.3 specifications with dimensional accuracy including 0.477" head diameter and 1½" length. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
