S-90602A230 3/8"-16 x 4" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws
High-Strength Grade 8 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
- Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh environments
- Precision thread engagement with Class 3A thread fit ensuring secure fastening and vibration resistance
- Enhanced durability through Rockwell C32 hardness, maintaining structural integrity under heavy loads
- Optimized installation efficiency with UNC coarse thread spacing and external hex drive for quick assembly
- Distributed load bearing thanks to the flanged design that increases surface contact area
- Industry-standard compliance meeting IFI 111/SAE J429 specifications for guaranteed quality and interchangeability
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these Grade 8 hex head screws deliver exceptional performance in construction equipment, machinery assembly, and structural frameworks where high tensile strength and vibration resistance are critical. The zinc yellow-chromate plated steel construction provides superior protection against corrosion in outdoor or chemically aggressive environments, while the partially threaded design with UNC coarse spacing ensures optimal clamping force distribution. The external hex drive and flanged head design facilitate quick installation and eliminate the need for separate washers, reducing assembly time and component count in industrial fastening systems.
Specification Summary & Compliance
This 3/8"-16 x 4" hex head screw features precision Class 3A thread fit with UNC coarse thread spacing and right-hand threading. Manufactured to meet IFI 111/SAE J429 specifications for Grade 8 fasteners, ensuring dimensional accuracy and mechanical properties. The product complies with industry standards for heavy-duty applications and meets environmental regulations including RoHS and REACH compliance for responsible manufacturing.
