S-90409A209 3/4"-16 x 2" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Tensile Strength - With 150,000 psi tensile strength, this screw provides reliable fastening in high-stress applications, reducing the risk of failure under heavy loads.
• Superior Hardness & Durability - Rockwell C32 hardness ensures excellent wear resistance and longevity, minimizing replacement needs in demanding environments.
• Flanged Design for Enhanced Stability - The integrated flange distributes load evenly, preventing loosening and improving joint integrity without requiring separate washers.
• Precision UNF Fine Threading - Fine thread spacing offers better adjustment and vibration resistance, ideal for applications requiring tight, secure fits.
• Grade 8 Steel Construction - Made from high-strength steel, it withstands extreme conditions and offers consistent performance in industrial settings.
• Class 2A Thread Fit for Easy Assembly - Provides sufficient clearance for quick installation while maintaining secure engagement, saving time during assembly.
• Comprehensive Compliance - Meets IFI 111, SAE J429, RoHS 3, and REACH standards, ensuring safety, environmental responsibility, and reliability for global supply chains.

Professional Applications & Engineering Value

This Grade 8 steel hex head screw is engineered to address critical challenges in heavy-duty industrial applications, such as machinery assembly, construction equipment, and automotive systems. The UNF fine thread design enhances grip and resistance to vibration, reducing maintenance needs in dynamic environments. Constructed from high-strength steel with a flanged feature, it eliminates the need for additional washers, streamlining installation and improving load distribution. The partially threaded shank allows for precise clamping force control, making it ideal for components requiring adjustable tension. With a Rockwell C32 hardness and 150,000 psi tensile strength, it ensures long-term reliability in high-stress scenarios, from structural frameworks to industrial machinery, providing a robust fastening solution that minimizes downtime and enhances operational efficiency.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including a Class 2A thread fit for consistent engagement and UNF fine threading with a size of 3/4"-16. It meets manufacturing specifications under IFI 111 and SAE J429, ensuring interoperability and quality. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms environmental safety and regulatory adherence, supporting use in regulated industries worldwide.