S-92480A545 1/4"-20 x 1" ASME B18.6.3 Brass Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to brass construction, ideal for humid or corrosive industrial environments
• Reliable fastening performance with Class 2A coarse UNC threads ensuring easy installation and vibration resistance
• High tensile strength of 50,000 psi provides secure, long-lasting holds in demanding applications
• Efficient Phillips No. 3 drive allows for quick installation with standard tools while minimizing cam-out
• 82° countersink flat head design sits flush with surfaces for clean, snag-free finishes
• Full threading along 1" length offers maximum grip and adjustment flexibility
• Rockwell B50 hardness maintains thread integrity through repeated use and disassembly

Professional Applications & Engineering Value

Engineered for precision and durability, these 1/4"-20 UNC brass flat head screws solve critical fastening challenges in electrical enclosures, marine hardware, and plumbing systems where corrosion resistance is paramount. The Class 2A coarse thread configuration prevents cross-threading during high-speed assembly while maintaining secure connections in vibrating equipment. With fully threaded design and standard 82° countersink angle, these screws provide maximum surface contact and flush mounting for streamlined industrial designs. The combination of 50,000 psi tensile strength and Rockwell B50 hardness ensures reliable performance in both static and dynamic loading conditions.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerances for consistent performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features 1/4"-20 UNC coarse threads in right-hand direction, 0.25" thread diameter, and 1" fully threaded length in inch system measurements.