S-94239A117 3/8"-16 x 1 3/4" SAE J429 High-Strength Grade 8 Steel Serrated-Flange Hex Head Screws
High-Strength Grade 8 Steel Serrated-Flange 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
- Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in high-stress applications
- Superior corrosion resistance through zinc-plated steel construction, extending service life in demanding environments
- Enhanced vibration resistance with serrated locking flange design that prevents loosening under dynamic loads
- Grade 8 reliability meeting IFI 111 and SAE J429 standards for consistent quality and industrial compliance
- Quick installation and removal with external hex drive design that provides excellent torque transmission
- Secure fastening performance with Class 2A thread fit ensuring proper engagement and reduced cross-threading risks
- Environmental compliance assurance with RoHS 3 and REACH standards for safe, regulated industrial use
Professional Applications & Engineering Value
This Grade 8 hex head screw delivers exceptional engineering value through its zinc-plated steel construction and 150,000 psi tensile strength, making it ideal for heavy machinery, structural assemblies, and industrial equipment where vibration resistance and load capacity are critical. The fully threaded UNC coarse threading provides superior holding power in various materials, while the serrated locking flange eliminates the need for additional locking components, reducing assembly time and costs. The external hex drive ensures reliable torque application in confined spaces, and the Rockwell C33 hardness maintains thread integrity through repeated installations. These heavy-duty fasteners solve common industrial challenges of joint failure, corrosion, and vibration-induced loosening in demanding applications.
Specification Summary & Compliance
This industrial fastener features precise Class 2A thread fit with 3/8"-16 UNC coarse threading and right-hand thread direction, manufactured to exacting Grade 8 standards. The screw maintains dimensional accuracy with 1 3/4" length, 13/16" flange diameter, and full threading throughout. Compliance is verified with IFI 111 and SAE J429 specifications, along with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial safety and sustainability.
