S-90129A113 1/4"-20 x 1" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Flanged Hex Head Screws
Medium-Strength Grade 5 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 black protective coating for extended service life in harsh environments
- Exceptional load-bearing capacity with 120,000 psi tensile strength for heavy-duty applications
- Optimized torque transmission through external hex drive design for secure installation
- Enhanced stability with integrated flange design distributing clamping force evenly
- Reliable thread engagement with fully threaded UNC coarse pattern for maximum holding power
- Consistent performance maintained through Rockwell C22 hardness rating
- Industry-standard compatibility with Class 2A thread fit ensuring proper assembly
Professional Applications & Engineering Value
These Grade 5 hex head screws deliver critical performance advantages in demanding industrial settings. The black corrosion-resistant coated steel construction provides essential protection against environmental degradation, significantly extending service intervals in outdoor equipment, machinery, and structural assemblies. The 1/4"-20 UNC coarse thread configuration ensures rapid installation and superior resistance to vibration loosening, while the fully threaded design maximizes grip length for enhanced joint integrity. The combination of 120,000 psi tensile strength and external hex drive makes these flanged hex screws ideal for high-stress applications where reliable fastening is non-negotiable, from heavy equipment manufacturing to construction projects requiring durable industrial fasteners.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse thread specifications. Complies with IFI 111 / SAE J429 manufacturing standards for Grade 5 fasteners. Meets environmental regulations including RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant requirements. Features include: 1/4"-20 thread size, 1" length, 3/8" head width, and 9/16" flange diameter.
