Bolt/washer sizes...
Discussion
Trying to re-fit the exhaust manifold to my A6 and it turns out that the M10 studs that hold the manifold to the turbo are no longer available, and have been replaced with a revised part that is a simple M10X50 bolt. They're £7.58 each from Audi and need ordering from the factory so I'm just going to get a pack from somewhere else, at about £1 for 1000000000
Only thing is it says on the parts catalogue to use a washer with the bolt and lists a size "10,4x24x3" - this doesn't seem to relate to any size that a typical hardware place has against a washer, simply listing M10 and not any other information.
How can I be sure I'm buying something that's as close a match to what it should be as possible?
Only thing is it says on the parts catalogue to use a washer with the bolt and lists a size "10,4x24x3" - this doesn't seem to relate to any size that a typical hardware place has against a washer, simply listing M10 and not any other information.
How can I be sure I'm buying something that's as close a match to what it should be as possible?
I've also lost a couple of the nuts for where the manifold joins to the block - they're copper and I'm not sure I'll be able to get copper replacements readily/quickly, would I be OK to replace them all with stainless or should I go and try to find a fastener specialist place that will stock more obscure stuff?
doogz said:
Toaster Pilot said:
I think they're self locking though.... can't find any in stock locally
What sort of nuts are they?They won't be nyloc. If you tighten them properly, they should be fine, could fit some spring washers if you're worried?
They're like that.
I've bought 3 high tensile steel M10 bolts with washers, 20x standard m8 nuts, 20x spring washers and 20x flat washers, for £3 from a local place - so that's my plan at the moment with some careful checking that the 50mm bolts are going to be fine with the slightly thinner washers.
Edited by Toaster Pilot on Monday 27th January 12:55
doogz said:
Toaster Pilot said:
I think they're self locking though.... can't find any in stock locally
What sort of nuts are they?They won't be nyloc. If you tighten them properly, they should be fine, could fit some spring washers if you're worried?
Having spent an hour removing them from my MX5 turbo three weeks ago I can confirm that lighty rusted studs do an excellent job of stopping nuts winding loose.
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