Thumb Screw Head for Ikea Signum Cable Management

I have Ikea Signum Cable management "net" that keeps cables neatly under my computer desk. Unfortunately I lost one of the thumb screw (shown on 4th picture). So I quickly designed a replacement. It uses M8 screw of pretty much any length. I had this button head screw laying around so I made thumb screw head for it. Can be printed in any material at pretty much any setting, as long as screw stays tight in in and doesn't turn easily :)