1/4-20 x 1” Screw Size Mirror Mounting Screw & Jack Nut Assembly Compare with: Auveco #14977, G.M. # 367292, 367291, Car Pak # 76-4403, 764403, Barnes / Kar # 1251-A, 1251A, Kent / Lawson # P38072, Winzer # 502.13020, 502.13021, S&R # 200170