S-90273A191 8-32 x 5/16" ASME B18.6.3 Steel Phillips Flat Head Screws
Steel Phillips 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 zinc-plated steel construction, ensuring long-lasting performance in demanding industrial environments
- Exceptional mechanical strength with 60,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing applications
- Effortless installation thanks to the Phillips No. 2 drive and standard 82° countersink angle for flush, secure seating
- Wide compatibility with UNC coarse threading and Class 2A fit, providing reliable fastening in various materials
- Full-thread engagement along the 5/16" length for maximum grip and vibration resistance in assemblies
- Regulatory compliance with ASME B18.6.3, RoHS 3, and REACH standards, ensuring safety and environmental responsibility
- Universal inch-system sizing for seamless integration with North American machinery and equipment designs
Professional Applications & Engineering Value
This 8-32 UNC flat head screw delivers critical engineering value in industrial settings where vibration resistance and flush mounting are essential. The zinc-plated steel construction provides excellent corrosion protection for machinery, electrical enclosures, and automotive components exposed to harsh conditions. Its coarse UNC threading and Class 2A fit ensure reliable fastening in metals, plastics, and composite materials, while the 82° countersink angle creates seamless surfaces that prevent snagging in moving parts. The fully threaded design maximizes contact area for superior holding power, making these Phillips drive screws ideal for production lines requiring efficient assembly with standard tools.
Specification Summary & Compliance
This flat head Phillips screw features precise Class 2A thread fit per UNC standards with 8-32 coarse threading and right-hand direction. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial supply chains.
