7530 connecting bolts with steel threaded rod & nylon ends fits 8 mm (5/16″) bore, in various colors. sold in lots of 500 sets at the a very same low price for any length any color. Must order in lots of 500 sets and please specify length & color. lengths are: 32-38 mm, 36-42 mm, 42-48 mm, 48-54 mm, 54-60 mm, 59-65 mm. colors are: white, brown, almond, medium brown. Please note not all sizes available in all colors.