S-92451A535 1/4"-20 x 3/8" ASME B18.6.3 Brass Slotted Flat Head Screws
Brass Slotted 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 harsh industrial environments
- Exceptional tensile strength rated at 50,000 psi ensures reliable fastening under heavy loads
- Flush mounting capability with undercut flat head and 82° countersink angle for seamless surface integration
- Precise thread engagement with Class 2A fit and UNC coarse threads for quick assembly and vibration resistance
- Enhanced durability with Rockwell B50 hardness maintaining structural integrity through repeated use
- Full threading design provides maximum grip length and uniform stress distribution
- Regulatory compliance meets ASME B18.6.3 standards and environmental regulations for global acceptance
Professional Applications & Engineering Value
These 1/4"-20 UNC brass flat head screws deliver critical solutions for industrial applications where corrosion resistance and flush surface mounting are paramount. The brass material provides excellent protection against galvanic corrosion and chemical exposure, making these slotted flat head screws ideal for marine equipment, electrical enclosures, and plumbing systems. The undercut flat head profile with 82° countersink angle ensures secure, flush installation that prevents snagging while maintaining structural integrity. With fully threaded coarse UNC patterns and Class 2A fit, these fasteners offer rapid installation and reliable performance in vibration-prone environments, reducing maintenance cycles and improving operational efficiency in demanding industrial settings.
Specification Summary & Compliance
Manufactured to exact inch system dimensions with Class 2A thread fit tolerance for precision mating. Complies with ASME B18.6.3 mechanical standards for flat head screws, featuring UNC coarse thread series with right-hand threading. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across global markets. Thread specifications include 1/4"-20 UNC coarse pattern with full threading for maximum engagement strength.
