10 Packs 3/8"-16 Rod Coupling Nuts, UNC Threaded Hex Coupling Nut，Length: 1-3/4"

These NIDAYE 1/4"-20 coupling nuts are exactly what I needed for my project. The threading is clean and consistent, and they fit perfectly with standard 1/4"-20 rods and bolts without any issues. The hex shape makes them easy to tighten, and they feel durable and well-made—not flimsy or weak. The 50-pack is a great value and gives you plenty of nuts for multiple uses. If you’re looking for reliable, well-threaded coupling nuts for DIY or professional use, these are a great choice. Highly recommend!

These coupling nuts worked perfectly. Seems to be very well made and the threads were good. I had no trouble with threading these onto the carriage bolts that I was using them on. I tack welded a wing nut on one end to make them work as an extended fastener to reach into a metal channel that secured the carriage bolts. The quality of the thread taps and plating were great, not one issue with any of them.

good for my needs . the finish is what is important because they will be exposed to elements 24/7.

Good price. Worked for me

Just what I needed to complete the job.

They fit and work. 1 of the ten had buggered threads. Easily fixed.

I use these when I need to extend the length of threaded rods. Great solution.

They work great!

Great to extend an engine lever.

I avoid full 5* reviews, but this is either a functioning nut, or it's not. It is! The threads are cut clean, the outsides are smooth. The price is right. What else can i say? 5* all the way.

These nuts are sized right with threads that are properly cut. They glide onto threaded rod with no problem, and when tightened appropriately, they hold on without letting go. What else could anyone possibly want. Good nuts, good price!