a molded plastic retainer for supporting a spiked vehicle stud . in a construction useable with snowmobile studs , a ground engaging surface includes a self threading center bore and concentrically disposed to which are a raised , hexagon tool surface and a number of pointed secondary , traction enhancing studs . a track engaging surface of the retainer includes a tapered recess concentric to the stud receiving bore and a number of projections which enhance the grip between the retainer and track without squeeze out or tearing . alternative configurations and mounting arrangements of the secondary studs and gripping projections are disclosed and some of which provide multi - faceted surfaces .