S-90409A216 3/4"-16 x 5" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance and durability through Grade 8 steel construction and Rockwell C32 hardness
• Enhanced vibration resistance with UNF fine threading providing more threads per inch for secure fastening
• Simplified installation and increased bearing surface thanks to the integrated flange design
• Precise thread engagement with Class 2A thread fit ensuring consistent performance and easy assembly
• Optimized strength-to-weight ratio through partial threading design for specific application requirements
• Industry-standard compatibility with external hex drive for common tooling and straightforward installation

Professional Applications & Engineering Value

This Grade 8 steel hex head screw with 3/4"-16 UNF fine threading delivers exceptional engineering value for heavy-duty industrial applications. The combination of 150,000 psi tensile strength and Rockwell C32 hardness ensures reliable performance in high-vibration environments where fastener failure is not an option. The integrated flange design eliminates the need for separate washers, providing increased bearing surface and distributing clamp load more effectively. The partial threading allows for precise load distribution while the UNF fine thread configuration offers superior resistance to loosening under dynamic loads. These industrial fasteners are engineered to withstand extreme conditions in construction equipment, heavy machinery, and structural applications where heavy-duty hex bolts are essential for safety and performance.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit with 3/4"-16 UNF fine threading and 5" length with minimum thread length of 1 3/4". Manufactured to meet IFI 111 specifications where identified as SAE J429 compliant. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant (06/14/2023 where identified as 235 SVHC), ensuring environmental regulatory compliance for industrial applications worldwide.