S-90409A202 3/4"-10 x 2 3/4" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws
High-Strength Grade 8 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
- Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in high-stress industrial environments.
- Superior durability and wear resistance due to Grade 8 steel construction and Rockwell C32 hardness, extending service life.
- Secure and precise fastening ensured by Class 2A thread fit and UNC coarse threading, reducing cross-threading risks.
- Enhanced stability and distribution from the integrated flange, minimizing the need for separate washers.
- Full-length threading provides consistent grip along the entire 2 3/4" length for versatile application use.
- Easy installation and removal with an external hex drive and 1 1/8" head width, compatible with standard tools.
- Compliance with industry standards including IFI 111 and SAE J429, ensuring quality and interchangeability.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered to address critical challenges in heavy machinery, construction, and automotive assemblies where high tensile strength and vibration resistance are paramount. The steel material and fully threaded UNC coarse thread design ensure rapid installation and robust holding power, even under dynamic loads. The flanged feature distributes clamping force evenly, reducing surface damage and loosening in industrial applications. With a right-hand thread direction and external hex drive, it simplifies maintenance while meeting rigorous SAE J429 specifications for dependable performance in demanding environments.
Specification Summary & Compliance
This fastener adheres to precise dimensional standards, including a Class 2A thread fit for consistent engagement and UNC coarse thread with 3/4"-10 size. It complies with IFI 111 SAE J429 specifications, ensuring material and mechanical properties meet industry requirements for Grade 8 strength. The product is manufactured to deliver high reliability, with full threading and a flange diameter of 1 19/32", supporting applications that demand strict conformity to engineering norms.
