S-92451A578 5/16"-18 x 1/2" 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 demanding environments
- Excellent mechanical strength with 50,000 psi tensile strength and Rockwell B50 hardness for reliable fastening
- Precision thread engagement with Class 2A fit and UNC coarse threads ensuring secure installation and vibration resistance
- Optimized flush mounting featuring 82° countersink angle and undercut flat head design for smooth surface finishes
- Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and interchangeability
- Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industries
- Universal compatibility with right-hand threading and slotted drive for standard tooling and easy installation
Professional Applications & Engineering Value
These brass flat head screws with 5/16"-18 UNC coarse threading deliver exceptional performance in electrical components, marine hardware, and plumbing systems where corrosion resistance is critical. The fully threaded design provides maximum grip length and holding power, while the 82° countersink angle and undercut head profile ensure flush mounting without surface protrusion. The Class 2A thread fit guarantees precise engagement with mating components, reducing the risk of cross-threading and ensuring consistent clamping force. Manufactured from high-quality brass, these slotted drive screws combine the material's natural anti-galling properties with 50,000 psi tensile strength for durable fastening solutions in industrial assemblies requiring both mechanical reliability and environmental resistance.
Specification Summary & Compliance
These flat head screws feature precise Class 2A thread fit with UNC coarse threads (5/16"-18) in inch system measurements. Manufacturing conforms to ASME B18.6.3 specifications ensuring dimensional accuracy and performance reliability. The screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making them suitable for use in regulated industries and applications requiring strict material compliance standards.
