Rust proofing after cutting threads

[scott2640]

I need to make up several very long bolts for my build (some as big as 40 inches). I found a good price on 5/8" galvanized bar stock that I can cut to length and thread to my specifications. I don't want to use SB rod, sticker shock!

After I cut the threads, and there by remove all the galvanizing from the bar stock in the threaded area, what is the best way to treat the exposed steel to prevent/avoid the threads rusting? Epoxy? Paint?

appreciate the input.

[Diesel Bill]

Cold spray galvanize in a spray can like paint.

[Orion Jim]

It all matters on the application intended for your bolts. It might just make sense to stay away from cold galvanizing if you can't reapply it as required. It is not a replacement for hot dipped galvanizing. Sometimes it is thrifty to go with stainless.