General Wheel room bolts

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General Wheel room bolts

Morning one 'n all;
need a bit of technical help from owners of 500s with original pattern wheels (190pcd)--what are the dimensions of the wheel bolts? are they 10mmx1.25mm thread? I am trying to make up a 'locating stud' for a friend. The idea is that you (finger tight only) screw the stud into a wheel bolt orifice before you fit the wheel which greatly assists lining up the wheel bolts holes. When you have a couple of wheel bolts in place, you take out the stud and fit a correct wheel bolt. This makes it much easier to fit (and take-off) wheels. Look forward to any help that can be given--thank you.
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The wheel bolts are course not fine, so 1.5 thread and are M10 x 20mm. On a standard car with drums, you could also get away with 25mm in length.

So standard M10 studding will be fine for making up a wheel locating pin. I have some here if you want me to cut off a length and post in a Jiffy bag.

cheers, Steve
 
Thank you very much for the offer Steve, much appreciated. However, now that I know the correct size of thread, I will go through my large (wife says 'over large!') collection of bolts and make a stud from 1 of them with the head cut off and the thread cut down to about an inch long--don't forget, it will take very little load as it is only used to take off/put on a wheel.
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Thank you very much for the offer Steve, much appreciated. However, now that I know the correct size of thread, I will go through my large (wife says 'over large!') collection of bolts and make a stud from 1 of them with the head cut off and the thread cut down to about an inch long--don't forget, it will take very little load as it is only used to take off/put on a wheel.
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That would be better than studding, as a cut down bilt with a shank will make it easy to slide on and off. Another trick for anyone physically impaired and unable to lift a wheel (even a small 12" one ;) ) is to use a spade under the tyre. The lever effect of the spade enables them to lift the wheel tyre combo into position easily. Maybe help for you neighbour too.

Could you not use a HT. short stud for each wheel and leave that in permanently with one wheel bolt replaced with a nut?
A previous owner of my 500 had obviously stripped on of the rear threads and had welded in some studding and used a nut on one of the rear wheels. So I needed two new drums added to the parts order :rolleyes:

cheers, Steve
 
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