S-94414A620 3/8"-16 x 1/2" ASME B18.3, ASTM F835 Alloy Steel Torx Flat Head Screws
Alloy Steel Torx 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 torque transmission with Torx Plus IP45 drive for reduced cam-out and increased fastener lifespan
- Exceptional tensile strength of 140,000 psi provides reliable performance in high-stress applications
- Enhanced corrosion resistance through black-oxide coating on alloy steel for extended service life
- Precise thread engagement with Class 3A fit ensures secure fastening and vibration resistance
- Optimized countersinking with 82° flat head profile for flush mounting in industrial assemblies
- Maximum thread coverage through full threading for superior holding power across the entire length
- Industry compliance assurance meeting ASME B18.3 standards for reliable engineering applications
Professional Applications & Engineering Value
These 3/8"-16 UNC flat head screws deliver critical performance advantages for demanding industrial environments. The black-oxide alloy steel construction combined with Rockwell C39 hardness provides exceptional durability against wear and environmental factors. The Torx Plus IP45 drive system addresses common installation challenges by minimizing tool slippage and enabling higher torque application without damaging the drive recess. This is particularly valuable in assembly lines where consistent fastening quality is essential. The coarse UNC threading with Class 3A fit ensures rapid installation while maintaining precise thread engagement, making these screws ideal for machinery, heavy equipment, and structural applications where vibration resistance and reliable clamping force are paramount.
Specification Summary & Compliance
These screws feature 3/8"-16 UNC coarse threads with Class 3A thread fit for precision tolerance, manufactured to ASME B18.3 specifications where applicable. The 82° countersink angle conforms to standard flat head profiles for proper seating. Regulatory compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for global industrial markets. The mechanical properties include 140,000 psi tensile strength and Rockwell C39 hardness for consistent performance in demanding applications.
