S-94239A126 3/8"-16 x 1 1/4" IFI 111 High-Strength Grade 8 Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Maximum load-bearing capability with 150,000 PSI tensile strength and Grade 8 classification, ensuring reliability in high-stress environments.
• Superior corrosion resistance from zinc yellow-chromate plating, extending service life in harsh or outdoor conditions.
• Enhanced vibration resistance due to serrated locking features under the flange, reducing loosening in dynamic applications.
• Easy installation and removal with an external hex drive and coarse UNC threading, allowing for quick assembly with standard tools.
• Increased bearing surface and stability from the integrated flange, distributing clamp load effectively and minimizing surface damage.
• Precise thread engagement with Class 2A fit and fully threaded design, providing consistent performance and reduced risk of cross-threading.
• Compliance with industry standards including IFI 111 and SAE J429, guaranteeing quality and interchangeability for professional use.

Professional Applications & Engineering Value

Engineered for demanding heavy-duty applications, this Grade 8 hex head screw delivers exceptional durability where failure is not an option. The zinc yellow-chromate plated steel construction combats corrosion in industrial settings, such as machinery assembly, construction frameworks, and automotive components, where exposure to moisture and chemicals is common. Its UNC coarse thread spacing and fully threaded design enable faster installation and stronger holding power in brittle materials or high-vibration environments. The external hex drive and flanged head with serrations provide secure fastening without the need for additional washers, reducing assembly time and improving safety. By meeting IFI 111 and SAE J429 specifications, it ensures consistent performance in critical industrial hex bolt applications, minimizing downtime and maintenance costs.

Specification Summary & Compliance

This fastener adheres to precise dimensional standards, including Class 2A thread fit for consistent engagement and UNC coarse thread with a size of 3/8"-16. It is manufactured in compliance with IFI 111 and SAE J429 standards, ensuring high-quality and reliability. The product meets common industry regulations for material and performance, supporting use in various engineering and construction projects without compromise.