Modelcraft shaft collars with grub screws packs of 10 and 25 modelcraft 10200 the modelcraft shaft collar with grub screw is a high grade machine component with a robust quality designed for easy installation surface hardened and available in an assorted pack of 25 with 5 set collars each for axles with a diameter of 23456mm and 25 grub screws for fastening modelcraft 10200 shaft collars with grub screws assorted pack 25