05-10-2015, 09:15 AM
(05-10-2015, 08:08 AM)PixMan Wrote: Good use for the old wheel nuts and screws! OT question: What cars other than BMW's use screws for the wheels rather than studs and nuts? My now-extant BMW's ('88 535i, '02 530i) had longer screws similar to the one on the right. No other American or Japanese (1 Nissan) car I've ever owned used them. All others had studs pressed into wheel hubs, and nuts to fasten wheels to the hubs.
Ken,
Do you have any idea why BMW does this? Is there some perceived advantage to screws over studs? Our '97 M3 was that way it it made tire changing a real PITA.
As a side note my John Deere X595 lawn tractor is the same way ... screws rather than studs. I've got a set of wheels for the summer and a set for winter (more aggressive tread and the chains permanently mounted to the rear set) and changing from one to the other with the screws makes what should be a 15 minute task about 45 minutes. The center hubs are a very tight fit with the holes in the wheels. With the screws, if I don't get things lined up reasonably well I can not turn the wheel to match the wheel screw holes with the hub threaded holes. Twice a year I say "I'm going to fix this and install studs next time ..." but I never actually do.
Arvid