3/4" Black screw post extensions are great for adding a little more room to a scrapbook or photo album. This extension is 3/16" in diameter and has a #8/32 thread. They screw into the bottom of a screw post that must have a thread size of #8/32. Your hole must be drilled or punched for 1/4" standard size to allow the post to fit into your project properly. These extensions are anodized with a black coating to give them a great shine. For orders over 2500 pieces give us a call and we will give you a quote.