Torque settings for assembly of 3 piece wheels
Hey folks, I've pulled apart, repainted the centres and restored a set of 14X7 volk fins but I'm trying to work out if I've done something right. I did one pair of the wheels a few weeks ago and at the time I did a search on the net to work out what torque setting to tighten the bolts to. From memory I did them up to 45ft/lb. I've just done the other pair on the weekend but this time I found a different answer and did them up so far to 25ft/lb. So I don't know if I should continue to tighten the second pair to 45 or if I've actually overtightenend the first pair? The bolts are M8X1.25 S/S cap screws with S/S washers and flange nuts. There seems to be a lot of varying answers for the question as I have searched around and I'm wondering if that's because a different size bolt on a different size wheel is the reason for all the variation, also the amount of bolts on a wheel may change it too. Does anyone know if there's a torque setting specific to my wheel?
Cap heads from my lookin' around seem to all be grade 12.9 which puts them at 42Nm. What bugs me from is them saying 12.9's fail from corrosion. and you're said you've got SS cap heads, you sure they're not nickel coated?
I have the same wheels (except they're not volk or 3 piece) but I just tightened them up with a 1/2" ratchet and a short (like 4" long) allen key. That was years ago and they're still together with all fasteners intact.
100% sure they're Stainless and not nickel coated. 42nm is around 31ft/lb so halfway in the middle of all the different specs I've been getting. I'm tempted to individually undo each nut today and put a dab of loctite and retension to around the 30 to 40ft/lb mark.
use a magnet.
I think if it's SS, it can't be grade 12.9 which would make it something else... of which I can't find yet. I'd try the torque of a grade 8 m8x1.25 bolt of 25Nm. I would just do it up to that and see how tight that is and go a little more if it feels loose.
Are there any identification marks on the bolts anywhere?
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