Nut, Product Type Nut, Compatible with Manufacturer Part Number Speed Scrub Rider, SS300, SS507, T12, T300, T5, T500, T600, T600E, T7, Compatible with Grainger Part Number 39DK97, 39DK98, 39DK99, 39DL01, 39DL02, 39DL03, 39DL04, 39DL06, 39DL07, 39DL08, 488Z21, 488Z22, 488Z23, 488Z24, 53TX59, 53TX60, 53TX61, 53TX62, 53TX63, 53TX64, 53TX65, 53TX66, 53TX67, 53TX75