took out the hub bolts (Driver front) and as they are quite corroded, ordered new from dealer - the ones I took out are a smooth shank right to bolt head, and the OEM ones supplied (checked by VIN) have a serrated shoulder flange the last half inch or so before head.

 

Anyone seen this?  Don't want to try driving a serrated shoulder into a steering knuckle back that is not fitted for it.  (sorry, no pix)

 

 

 

 

 

Sounds like they sold you replacement lug studs instead of what you needed.

Lug studs have a knurled shank at the base. The knurling is deformed when the stud is pressed in and it holds the stud in place.

aha - that sounds like it.  thanks.