S-92451A554 1/4"-20 x 3" ASME B18.6.3 Brass Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass construction, ideal for harsh industrial environments
• Excellent tensile strength (50,000 psi) ensures reliable performance under mechanical stress
• Precision Class 2A thread fit provides smooth installation and secure fastening
• 82° countersink angle with standard flat head profile enables flush mounting for clean, professional finishes
• Partially threaded 3" length offers optimal grip range while reducing material usage
• Slotted drive compatibility allows for quick installation with standard tools
• Coarse UNC threading ensures rapid assembly and superior resistance to vibration loosening

Professional Applications & Engineering Value

This 1/4-20 UNC brass flat head screw delivers exceptional engineering value across multiple industrial sectors. The brass material provides inherent corrosion resistance, making it ideal for electrical components, marine hardware, and plumbing systems where moisture resistance is critical. The 82° countersink angle and standard flat head profile ensure seamless flush mounting in precision applications, while the coarse UNC threading and partial threading design optimize clamping force distribution. With Rockwell B50 hardness and 50,000 psi tensile strength, this slotted flat head screw maintains structural integrity in demanding mechanical assemblies, from machinery manufacturing to architectural hardware installations.

Specification Summary & Compliance

This 3" brass flat head screw features precise Class 2A thread fit with 1/4-20 UNC coarse threading and right-hand thread direction. Manufactured to exact ASME B18.6.3 specifications, it ensures dimensional accuracy and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for safe and sustainable industrial components.