S-90602A269 3/4"-10 x 1 3/4" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Grade 8 classification and 150,000 psi tensile strength for reliable performance in high-stress environments
• Superior corrosion protection through zinc yellow-chromate plating that extends service life in harsh industrial conditions
• Enhanced installation efficiency with UNC coarse threading and Class 2A fit ensuring quick assembly and consistent engagement
• Integrated flange design eliminates the need for separate washers while providing superior load distribution
• Optimized drive performance with external hex head design offering maximum torque application and slip resistance
• Premium material integrity featuring Rockwell C32 hardness for excellent wear resistance and durability
• Full threading coverage along the 1 3/4" length ensures maximum grip strength throughout the entire fastener

Professional Applications & Engineering Value

This Grade 8 hex head screw delivers critical engineering solutions for heavy machinery, structural assemblies, and industrial equipment where failure is not an option. The zinc yellow-chromate plated steel construction provides exceptional corrosion resistance in demanding environments, while the UNC coarse thread configuration ensures rapid installation and reliable performance in vibration-prone applications. The integrated flange design eliminates washer requirements and distributes clamping force evenly, making it ideal for automotive, construction, and manufacturing applications where 150,000 psi tensile strength and consistent performance are paramount. The external hex drive accommodates high-torque installation tools, ensuring secure fastening in critical joints and structural connections.

Specification Summary & Compliance

This heavy-duty fastener maintains precise Class 2A thread fit tolerances with 3/4"-10 UNC coarse threading and right-hand thread direction. Manufactured to meet IFI 111 specifications and SAE J429 standards for Grade 8 fasteners, it ensures consistent quality and performance. The 1 3/4" length with full threading provides complete engagement capability, while the 1 19/32" flange diameter offers optimal bearing surface. Compliant with industry standards for dimensional accuracy and mechanical properties, this fastener delivers reliable performance in critical industrial applications.