Screw Tops

Anyone know how to get screw tops for wine bottles? They are for commercial wine bottles that I clean and reuse. I think the industry standard is 30 mm; however, I know they won't all be like that. I have seen some one e c kraus's website. I was looking for some a little deeper than that.

austin homebrew sells them

perhaps http://www.midwestsupplies.com/catalogsearch/result/?q=screw+cap may work. They have a threaded bottle with two types of closures.

The problem is that I don't think those caps or threads are like the ones you find commercially. Those tend to be a non-threaded sheath that drops down around the bottle and are then formed by rollers around the threads of the bottle. By this process, you may not be able to find a machine that does this. Unless you have access to a company or college that does.