Perhaps you've seen screw posts (aluminum posts for binding) used to hold together items like swatch sample books, menus or scrap books. Their common uses include binding together portfolios, presentations, blueprints/architectural plans, photo print albums, proposals, thesis documents and more. Screw posts are also used to bind old, archived book pages and by leather crafters in creating saddles and holsters. We have even seen them used to encapsulate paintings and large prints between two sheets of clear acrylic.
While their capacities vary, all aluminum screw posts share the same basic anatomy when it comes to dimensions or measurements. The barrel post shafts are 3/16” in diameter. The top and bottom caps measure 7/16” in diameter and are just 1/16” thick (in height). All aluminum screw posts and extensions use the industry standard 8/32 thread pattern.
Plastic screw posts have a post diameter of .24” - still fitting a 1/4” or 5/16” hole. Their caps measure 3/8” in diameter and are 1/8” thick, making them appear slight bulkier than the aluminum versions.
Want to test some for yourself? We can send you a couple samples at not charge - just contact us. Or maybe have a look at our complete line of screw post binding choices - we can even send out a couple free samples if you'd like to get a closer look or try them out for yourself.
Got questions, ask away in the comments below, we'd love to answer you.
