Hillman 9/16-in x 12 Zinc-plated Steel Nylon Insert Nut

Stop nuts are designed to be fastened to a bolt when mechanically joining materials
Zinc finish offers moderate corrosion resistance
Install with hand tools such as a combination wrench
Nylon insert offers added security against loosening from vibration
Recommended for use with bolts and washers of a similar size and finish
Parts feature coarse 9/16-in-12 screw thread