S-90602A252 7/16"-14 x 1 1/2" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Maximum Load-Bearing Capability with 150,000 psi tensile strength and Rockwell C32 hardness for reliable performance in high-stress environments.
• Enhanced Corrosion Resistance provided by zinc yellow-chromate plating, extending service life in harsh or outdoor conditions.
• Secure Flanged Design eliminates the need for separate washers, distributing load evenly and preventing surface damage.
• Precision Thread Fit with Class 2A UNC coarse threads ensures easy installation and consistent engagement in various materials.
• Heavy-Duty Grade 8 Certification guarantees compliance with stringent SAE J429/IFI 111 standards for industrial applications.
• Optimized Partial Threading allows for controlled clamping force and reduced risk of thread stripping in critical assemblies.
• External Hex Drive Compatibility facilitates quick installation and removal with standard tools, improving maintenance efficiency.

Professional Applications & Engineering Value

Engineered for demanding industrial environments, this Grade 8 hex head screw delivers exceptional reliability where failure is not an option. The zinc yellow-chromate plated steel construction provides superior protection against corrosion, making it ideal for outdoor machinery, automotive frames, and structural steel connections exposed to moisture. Its UNC coarse thread design ensures rapid assembly in thick materials like cast iron or heavy-gauge steel, while the flanged head eliminates washer requirements—saving installation time and reducing component count. With 150,000 psi tensile strength and Rockwell C32 hardness, it withstands extreme vibrational loads and dynamic stresses in construction equipment, truck assemblies, and industrial manufacturing systems where high-strength fastening is critical.

Specification Summary & Compliance

This screw maintains Class 2A thread fit tolerances per UNC standards, ensuring consistent engagement and interchangeability. Manufacturing adheres to IFI 111 / SAE J429 specifications for material composition and mechanical properties. The zinc yellow-chromate plating meets industry corrosion resistance standards, while the Grade 8 certification validates compliance with heavy-duty performance requirements. Dimensions include 7/16"-14 thread size, 1 1/2" length, and 15/16" flange diameter, with partial threading over a minimum 1 1/8" thread length. RoHS and REACH compliance is standard for environmental safety in industrial applications.