3/8 threaded rod, very cheap. I have too much, and am selling it for 60 cents per foot. It comes in 10 foot lengths, so that’s $6 for 10 feet. Home hardware’s price is almost $12 for 6 feet with tax My threaded rod is brand new, still in the manufacturer’s packaging, and in perfect condition. There are hundreds of things you can do with threaded rod - see Pinterest and You Tube for a ton of ideas. I used it to suspend strong shelves from the roof in my shed- keeping the floor clutter free. Fantastic stuff. I am happy to cut each piece twice - for free.