S-92323A523 1/4"-20 x 1 1/2" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws
Medium-Strength Grade 5 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
- Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
- Exceptional load-bearing capacity with 110,000 psi tensile strength to withstand heavy-duty applications
- Reliable thread engagement with UNC coarse threads and Class 2A fit for quick assembly and vibration resistance
- Enhanced locking security through flange serrations that prevent loosening under dynamic loads
- Optimized drive efficiency with external hex head design for high-torque installation using standard tools
- Full-threaded versatility along the 1½" length for maximum grip depth in various material thicknesses
- Industry-compliant performance meeting Grade 5 standards for consistent quality and reliability
Professional Applications & Engineering Value
These Grade 5 zinc-plated steel hex head screws deliver critical performance where structural integrity matters most. The combination of 110,000 psi tensile strength and Rockwell C22 hardness ensures reliable fastening in heavy machinery, construction equipment, and industrial assemblies subject to substantial mechanical stress. The UNC coarse threading provides superior pull-out resistance in softer materials while enabling rapid installation. Flange serrations bite into mating surfaces, creating positive mechanical locking that eliminates the need for additional washers in vibration-prone applications. The external hex drive accommodates high torque values during installation, making these fully threaded screws ideal for critical joints in manufacturing, automotive, and infrastructure projects where failure is not an option.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with 1/4"-20 UNC coarse threads and compliant with IFI 111/SAE J429 specifications for Grade 5 fasteners. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards. Features include 9/16" flange diameter, 3/8" head width, and right-hand threading for standardized installation procedures across industrial applications.
