Also referred to as "Chicago Screw Posts" & "Chicago Screws", our Aluminum screw post binding posts are a great choice for swatch books, architectural and engineering drawings, or any application where loose sheets need to be kept together.
* Diameter (outside post): 3/16"
* Diameter (outside screw head): 7/16"
* Recommended hole size: 1/4-5/16"
* Post is threaded all the way through
* Screw Head: 1/16" (A top & bottom head will add an additional 1/8" to post length)
