Shafts and Bars for Singer Featherweight Vintage Parts 221 and 222 Sewing Machine. Pictured here are the shafts and bars along with the Spool Pin cover. You match up the part and the part number so you get the right part you need for your Singer Featherweight sewing machine. Some pictures are worth a thousand words. Buy this picture and download it so you have a copy of the part you need.