S-90166A126 3/8"-16 x 3/4" ASTM F593, IFI 111 Stainless Steel Flanged Hex Head Screws
Stainless Steel Flanged Hex 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 construction, ideal for harsh industrial environments
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
- Flanged design eliminates need for separate washers, speeding up assembly and reducing component count
- Class 2A thread fit with UNC coarse threading provides smooth installation and excellent anti-loosening properties
- External hex drive and 9/16" head width allow for high-torque application with standard tools
- Full threading along 3/4" length offers maximum grip and adjustment flexibility in assemblies
- Rockwell B80 hardness maintains thread integrity and durability through repeated use
Professional Applications & Engineering Value
This 3/8"-16 UNC hex head screw delivers exceptional engineering value in demanding applications where corrosion resistance and mechanical strength are critical. The 18-8 Stainless Steel composition provides inherent protection against rust and chemical exposure, making it ideal for marine equipment, food processing machinery, and outdoor structures. The flanged design distributes clamping force over a wider surface area (13/16" flange diameter), preventing surface damage and maintaining joint integrity under dynamic loads. With its coarse UNC threading and Class 2A fit, this fastener ensures quick installation and reliable performance in high-vibration environments such as industrial machinery, transportation equipment, and construction assemblies where frequent maintenance isn't practical.
Specification Summary & Compliance
This flanged hex head screw features precision 3/8"-16 UNC coarse threading with Class 2A tolerance for consistent fit and performance. Manufacturing complies with ASTM F593 specifications (IFI 111) for stainless steel fasteners. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.
