S-90602A220 3/8"-16 x 3/4" 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 capability with 150,000 psi tensile strength and Grade 8 classification for reliable performance in high-stress environments
- Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in demanding industrial conditions
- Precision thread engagement with Class 3A UNC coarse threading ensures secure fastening and vibration resistance
- Enhanced installation efficiency through external hex drive design and flanged head that eliminates separate washers
- Optimal hardness retention with Rockwell C32 rating maintains structural integrity under repeated stress cycles
- Full-thread design maximizes grip length and distributes clamping force evenly across the entire fastener
- Regulatory compliance assurance meeting IFI 111/SAE J429 specifications and REACH environmental standards
Professional Applications & Engineering Value
These Grade 8 hex head screws deliver critical engineering solutions for heavy machinery, structural assemblies, and industrial equipment where tensile strength and corrosion resistance are paramount. The zinc yellow-chromate plated steel construction provides exceptional protection against environmental degradation while maintaining the 150,000 psi tensile strength required for high-vibration applications. The UNC coarse threads with Class 3A fit ensure rapid installation and reliable performance in steel frameworks, automotive components, and construction equipment. The integrated flanged design distributes clamping pressure effectively, preventing surface damage and reducing assembly time. These industrial fasteners are engineered to withstand extreme mechanical stress while maintaining thread integrity through countless duty cycles.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 3A thread fit and UNC coarse threading (3/8"-16). Complies with IFI 111 specifications where identified as SAE J429 for Grade 8 fasteners. Meets REACH compliance (EC 1907/2006) regarding Substances of Very High Concern. Features include right-hand threading, external hex drive, and fully threaded design with 3/4" length and 13/16" flange diameter.
