S-90602A221 3/8"-16 x 1" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional strength and durability with Grade 8 classification, 150,000 PSI tensile strength, and Rockwell C32 hardness for reliable performance in demanding environments.
• Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life and reducing maintenance in harsh industrial settings.
• Precise and secure fastening due to Class 3A thread fit and UNC coarse threading, ensuring tight connections and resistance to vibration loosening.
• Easy installation and removal with an external hex drive and standard hex head design, compatible with common tools for efficient assembly.
• Enhanced load distribution from the integrated flange, minimizing surface damage and providing a larger bearing area for stable joints.
• Full threading for maximum grip along the entire 1-inch length, offering versatile engagement in various material thicknesses.
• Compliance with industry standards including SAE J429 and IFI 111, guaranteeing quality and interoperability for professional applications.

Professional Applications & Engineering Value

This Grade 8 hex head screw is engineered to address critical challenges in heavy-duty industrial applications, such as machinery assembly, construction, and automotive systems. Made from zinc yellow-chromate plated steel, it combats corrosion and wear, reducing downtime in corrosive environments. The 3/8"-16 UNC coarse thread and Class 3A thread fit ensure rapid installation and high resistance to vibration, preventing joint failure in dynamic loads. With a flanged design, it distributes stress effectively, protecting surfaces from damage. Ideal for scenarios requiring SAE J429 compliance, this screw delivers reliable performance where high tensile strength and durability are paramount, supporting efficient maintenance and long-term structural integrity.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerances and UNC coarse threading with a 3/8"-16 size. It meets SAE J429 and IFI 111 specifications, ensuring consistency and reliability. The zinc yellow-chromate plating supports RoHS and REACH compliance for environmental safety, while the material and manufacturing processes align with industrial fastener regulations for high-strength applications.