5/16" Screw Size 5/8" Flange O.D. Black Finish Push On TypeRetainers Compare with: Auveco #10087, Car Pak # 75-4121, 754121, Barnes / Kar # 35314, Disco # 1274PK, 1274B, Crest / Midwest # CRX1158, Kent / Lawson # P32276, Wurth # 150159322