S-92323A131 5/16"-24 x 1/2" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Corrosion-resistant zinc plating extends service life in demanding industrial environments
• Grade 5 strength rating provides reliable 110,000 psi tensile strength for heavy-duty applications
• Serrated flange design eliminates spinning and maintains secure locking without separate washers
• UNF fine thread configuration offers superior vibration resistance and precise adjustment capability
• External hex drive enables high-torque installation with standard tools for efficient assembly
• Class 2A thread fit ensures consistent engagement and smooth installation in various materials
• Full threading provides maximum grip length and versatile fastening options

Professional Applications & Engineering Value

These Grade 5 zinc-plated steel hex head screws deliver exceptional performance in heavy-duty industrial applications where vibration resistance and reliable clamping force are critical. The UNF fine thread configuration maintains tension under dynamic loads, making them ideal for machinery, equipment assembly, and structural frameworks. The serrated flange eliminates the need for separate lock washers while providing positive anti-rotation characteristics. With Rockwell C22 hardness and 110,000 psi tensile strength, these external hex drive screws withstand extreme mechanical stresses while the zinc plating provides essential corrosion protection in challenging environments.

Specification Summary & Compliance

This 5/16"-24 hex head screw features Class 2A thread fit per UNF standards with 1/2" length and 11/16" flange diameter. Manufactured to meet SAE J429 specifications for Grade 5 fasteners and compliant with IFI 111 standards. The product is RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, ensuring environmental responsibility and regulatory adherence for global industrial applications.