S-92210A648 3/8"-16 x 4 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 extended service life in harsh environments
- Exceptional tensile strength rated at 70,000 psi for reliable performance in heavy-duty applications
- Precision Class 3A thread fit ensures secure fastening and vibration resistance in critical assemblies
- Optimal flush mounting with standard 82° countersink angle for smooth surface finishes
- Enhanced torque transmission through 7/32" hex drive design preventing tool slippage
- Full threading along 4 1/2" length provides maximum grip and adjustment flexibility
- Industry compliance assurance meeting ASME B18.3 standards with RoHS 3 and REACH environmental regulations
Professional Applications & Engineering Value
These 3/8"-16 UNC flat head screws deliver critical engineering solutions where flush surface mounting and corrosion resistance are paramount. The 18-8 stainless steel construction combined with passivated finish provides exceptional protection against chemical exposure and atmospheric corrosion, making them ideal for marine, food processing, and outdoor industrial equipment. The coarse UNC threading and Class 3A fit ensure rapid installation and secure fastening in high-vibration environments, while the hex drive design prevents cam-out during high-torque applications. With full threading across the entire 4½" length, these flat head fasteners offer superior holding power in demanding structural applications where reliability cannot be compromised.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 3A thread fit and UNC coarse thread spacing for optimal engagement. These flat head screws feature 82° countersink angle and comply with ASME B18.3 specifications for dimensional accuracy and performance. The fasteners are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while maintaining 70,000 psi tensile strength and Rockwell B55 hardness for consistent mechanical performance.
