S-92323A518 1/4"-20 x 1" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel coating, extending service life in demanding industrial environments
• High-strength Grade 5 construction ensures reliable 110,000 psi tensile strength for heavy-duty fastening applications
• Secure anti-loosening performance through serrated flange design that bites into surfaces without separate washers
• Precise Class 2A thread fit provides consistent engagement and reduces cross-threading risks during installation
• External hex drive compatibility allows for high-torque installation with standard tools and quick assembly
• Full threading along 1" length offers maximum adjustment flexibility and grip strength
• Coarse UNC thread pattern enables faster installation and better performance in softer materials

Professional Applications & Engineering Value

Engineered for industrial machinery assembly and structural applications, these Grade 5 hex head screws deliver exceptional vibration resistance through their serrated flange design that eliminates the need for additional lock washers. The zinc-plated steel construction provides reliable corrosion protection in manufacturing environments while maintaining Rockwell C22 hardness for durability. With 110,000 psi tensile strength and fully threaded UNC coarse pattern, these fasteners offer superior clamping force for heavy equipment, automotive components, and construction projects where vibration resistance and long-term reliability are critical.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit tolerances with UNC coarse threading (1/4"-20) and right-hand thread direction. Compliant with SAE J429 specifications for Grade 5 fasteners, featuring 9/16" flange diameter and external hex drive. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards for industrial use.