8-32 Screw Size 5/16" Hole Size 7/16" Stem Length 7/16" Flange Diameter Black Rubber Well Nuts Compare with: GM # 14048060, Auveco # 13005, Car Pak # J05848, Crest-Midwest # CRX9884, Disco # 10035PK, 10035B, Clip Lizard # 30301