S-92451A544 1/4"-20 x 1 1/4" ASME B18.6.3 Brass Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass material, ensuring long-term reliability in harsh environments
• Excellent tensile strength of 50,000 psi provides secure fastening for demanding industrial applications
• Class 2A thread fit guarantees precise, reliable engagement with mating components
• Fully threaded design offers maximum grip and holding power along the entire screw length
• 82° countersink angle enables flush mounting for clean, professional installations
• Slotted drive compatibility allows for easy installation with standard tools
• Compliance with major standards including ASME B18.6.3 ensures consistent quality and performance

Professional Applications & Engineering Value

This 1/4"-20 UNC brass flat head slotted screw delivers exceptional engineering value through its corrosion-resistant brass construction and precision Class 2A thread fit. The combination of 50,000 psi tensile strength and Rockwell B50 hardness ensures reliable performance in demanding industrial environments where vibration resistance and long-term durability are critical. The fully threaded coarse UNC pattern provides superior holding power in soft materials and quick assembly applications. The standard 82° countersink angle allows for flush mounting in precision machinery, electrical enclosures, and marine applications where brass's natural corrosion resistance prevents galvanic reactions and maintains structural integrity over time.

Specification Summary & Compliance

This 1 1/4" length flat head screw features precise Class 2A thread fit with 1/4"-20 UNC coarse threading and standard flat head profile. Manufactured to ASME B18.6.3 specifications with 82° countersink angle and fully threaded design. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory compliance for global industrial applications.