3/8" Antique Brass aluminum screw posts are a quick and easy way to bind any project. The post is 3/8" in length and has a 3/16" diameter. The post and the screw heads both have a 7/16" diameter and are 1/16" thick with a thread size of #8/32. They are wonderful for projects like scrapbooking, book binding, menus, swatches, scripts and so much more. The 3/8" antique brass post comes with a 3/8" screw. You should drill or punch a standard 1/4" hole in your project for these posts to fit properly. They come in 20 set quantities, if you are looking for packs over 30 give us a call for a lower price.