S-90129A123 3/8"-16 x 1 1/4" 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 extends service life in harsh industrial environments
- Exceptional mechanical strength with 120,000 PSI tensile strength and Rockwell C22 hardness for heavy-duty applications
- Enhanced stability and load distribution through integrated flange design reduces surface pressure
- Reliable coarse UNC threading ensures quick assembly and secure fastening in various materials
- Precision Class 2A thread fit provides consistent engagement and vibration resistance
- External hex drive compatibility allows for high-torque installation with standard tools
- Full regulatory compliance with RoHS 3 and REACH standards for global industrial use
Professional Applications & Engineering Value
These Grade 5 hex head screws with black corrosion-resistant coating deliver exceptional performance in demanding industrial settings. The 3/8"-16 UNC coarse thread configuration combined with Class 2A thread fit ensures reliable fastening in structural applications, machinery assembly, and heavy equipment where vibration resistance is critical. The integrated flange design eliminates the need for separate washers while providing superior load distribution. Manufactured from high-strength steel with 120,000 PSI tensile strength, these screws withstand extreme mechanical stresses in construction, automotive, and manufacturing applications where corrosion resistance and long-term durability are essential requirements.
Specification Summary & Compliance
This Grade 5 hex head screw features precise 3/8"-16 UNC coarse threading with Class 2A thread fit tolerance for consistent performance. The fastener meets IFI 111/SAE J429 specifications for dimensional accuracy and mechanical properties. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. The 1-1/4" length and 13/16" flange diameter provide optimal fastening capabilities for standard industrial applications.
