7/16" Screw Size 27/32" Flange O.D. Black Finish Push On Type Retainers Compare with: O.E.M. # N/A, Car Pak # 74-4067, 744067, W&E #1051, Barnes / Kar # KP68779, 35316, Crest / Midwest # CRX1161, Kent / Lawson # P32346, Wurth # 150159163