💪 Strong and Versatile: National Hardware N222 406 Square Bolts for Secure Fastening Review

I used these to bolt a channel tool box to the rear bumper of our Thriller. I had to trim the thread to fit, but this feature works great.

Very confusing. Purchasing the U-bolt does not imply that the plates are included. So I went ahead and bought them. Been to U-Bolts! So I'm giving it back.

Exactly what I was looking for. Used with U-shape plate to fix flagpole to RV bumper. There are no problems with rust, it is very strong. The mast did not give way in very strong winds. Looks as good now as it did then.

Threading was bad on 2 of the 4 I had. Couldn't even undo the screws that were on them. Threads were bad in several places. Since I. need to complete this project i will pull out my faucet and fix them instead of having to worry about returning them through amazon so the buyer should be wary of dealing with these poor quality parts.

I used it to attach an air hose reel to a garage ceiling. The hose reel is heavy and I was concerned that the clamp bolts that came with the hose reel might one day come loose. I put the U-bolt on the rafter and through the hose reel hanger, problem solved.

Decent parts. Ok my standard 4 inch trailer bumper - that's what I'm going to use for the attachment. These are regular steel with a "weatherproof" zinc coating to help them resist rust. They are definitely NOT stainless steel (although the description incorrectly says it is stainless steel). .revain should really fix the listing).

Threads were bad on 2 of the 4 I've had. Couldn't even undo the screws that were on them. The themes were bad in several places. Since I have this project to complete, I'm going to pull out my faucet and fix them instead of having to worry about returning them through Amazon. So the buyer should beware of dealing with these poor quality parts.