S-92210A439 3/8"-16 x 5 1/2" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws
Stainless Steel Hex Drive 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 18-8 stainless steel and passivated finish for long-lasting performance in harsh environments
- Exceptional strength and durability with 70,000 psi tensile strength and Rockwell B55 hardness for demanding industrial applications
- Precise, secure fastening ensured by Class 3A thread fit and UNC coarse thread for reliable vibration resistance
- Efficient installation and removal with 7/32" hex drive, reducing assembly time and tool slippage
- Optimal flush mounting with standard 82° countersink angle flat head design for smooth, professional surfaces
- Full-thread engagement across the entire 5 1/2" length for maximum holding power in thick materials
- Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for quality and environmental safety
Professional Applications & Engineering Value
These 3/8"-16 UNC flat head screws deliver critical engineering solutions for industrial applications requiring both strength and corrosion resistance. The 18-8 stainless steel construction with passivated finish provides exceptional protection against rust and chemical exposure, making them ideal for marine, chemical processing, and outdoor equipment. The Class 3A thread fit and UNC coarse threading ensure superior vibration resistance in heavy machinery, while the hex drive design allows for high-torque installation without cam-out. The 82° countersink angle creates seamless flush mounting in metal fabrication and structural assemblies, eliminating protrusions that could interfere with moving parts or safety requirements.
Specification Summary & Compliance
This 5 1/2" fully threaded screw features precision Class 3A thread fit with UNC coarse thread (3/8"-16) for optimal engagement. Manufacturing complies with ASME B18.3 specifications, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial supply chains without hazardous substance restrictions.
