A: Unfortunately we only carry binding screw posts with the 3/16” diameter barrel. We don’t actually specialize in or manufacture screw posts. Our main focus is the print finishing/copying industry and this size works great for a standard ¼” or 5/16″ drilled or punched hole. You would probably find what you need is you searched for a supplier that specializes in screw fasteners.
To learn more about the binding screw posts that CFS supplies, you can see out All About Screw Posts video.
Do you have any questions about screw posts? Ask them in the comments below.