Grade 8 Zinc-Plated Flange Nut, 5/8 inch 18 Thread

This Grade 8 flange nut is built for high-strength fastening applications where reliability matters. Designed with a 5/8 inch-18 fine thread, 1-1/8 inch OD, it provides a secure, tight fit for heavy-duty use in agricultural, industrial, and trailer applications.

The integrated flange acts as a built-in washer, distributing load evenly and helping prevent loosening under vibration—making it ideal in demanding environments. Finished with a durable zinc plating, this nut offers added corrosion resistance for extended performance in outdoor conditions.

Features:

• Grade 8 strength for heavy-duty applications
• 5/8 inch-18 fine thread for secure fastening
• 1-1/8 inch outer diameter flange for load distribution
• Zinc-plated finish for corrosion resistance
• Built-in flange eliminates need for separate washer