This was from a tutorial from a book (    http://www.amazon.com/Photoshop-Down-Dirty-Tricks-Designers/dp/0133795640/ref=la_B006TPE2CM_1_1?s=books&ie=UTF8&qid=1462368246&sr=1-1       copy this if you want to see it, it teaches you a lot about Photoshop). It's a Metal X, with, I believe, a texture with a screen mode involved.