S-92451A124 5-40 x 1/4" 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, ideal for harsh environments and electrical applications
- Exceptional mechanical strength with 50,000 psi tensile strength and Rockwell B50 hardness for reliable, long-term fastening
- Precision thread engagement with Class 2A UNC coarse threads ensuring easy installation and a secure fit
- Flush, low-profile installation with a standard 82° flat head countersink angle for a smooth, aerodynamic surface finish
- Broad industrial compatibility due to full threading and right-hand thread direction for versatile use across assemblies
- Guaranteed quality and safety through compliance with ASME B18.6.3, RoHS 3, and REACH regulations
- Simplified manual installation and removal with a standard slotted drive, requiring only basic tools
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this 5-40 UNC flat head screw in brass offers a unique combination of non-magnetic properties, excellent conductivity, and inherent corrosion resistance, making it a top choice for electrical enclosures, marine hardware, and precision instruments. The fully threaded design with coarse thread spacing provides maximum grip and pull-out resistance in softer materials or pre-tapped holes. The slotted drive and standard flat head profile allow for quick, tool-efficient assembly, while the 82° countersink angle ensures a secure, flush fit that minimizes protrusion and snagging in finished products. This screw delivers reliable performance where precision, durability, and regulatory compliance are non-negotiable.
Specification Summary & Compliance
This screw maintains Class 2A thread fit per the UNC (Unified National Coarse) standard, ensuring dimensional accuracy and interchangeability. Manufacturing and quality are governed by the ASME B18.6.3 specification. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and safe for use in various global markets.
