Ball Stud.

Ball Stud at RC Shopper: 58 items in stock in the UK. Prices run from £4.49 to £39.99. Stock comes from Reve D, Yokomo, MST and 4 other brands. There are parts here for BD8, but check the listing for the revision you run. This is all on the shelf, not on order from a distributor. Before 2pm on a working day means it ships that day. Check the part number against your own car before ordering; a lot of these parts fit one chassis revision and not the next.