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BMW 3-Series (E90 E92) Forum
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Wheel nut covers
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04-05-2015, 03:33 PM | #23 | ||
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When i take them out the inner ends of the bolts are sparkling chrome like new. I guess its either cap covers or some sort of sealant. Might just remove my locking wheel nuts, i mean who steals wheels these days? Or a lug conversion kit? Not sure if thats what you call them |
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04-05-2015, 04:12 PM | #24 |
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The bolts are probably bright zinc plated.
The zinc acts as a sacraficial anode to protect the steel from rusting, but in the process it oxidises and turns grey. If left long enough it will "wear out" and the steel itself will begin to rust, this can happen sooner than you might wish if the bolts are a bit cheap and dont have a good coating on them. |
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04-05-2015, 04:19 PM | #25 | |
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So any recommendations on good extended bolts that dont go milky? |
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04-05-2015, 04:37 PM | #26 |
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I dont think you'll find any.
The bolts need to be made from high tensile steel. This rusts, so they coat it with zinc to stop it rusting as readily (or use other surface treatments that will result in a dark colored bolt like the factory ones). http://en.wikipedia.org/wiki/Plating#Zinc_plating |
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04-06-2015, 12:30 PM | #27 |
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Yes, I'd be interested to learn more about this too. I know Josh has them on his car, I think Shaun/Sam may also have them? gaza01 AWBimmer
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2009 E92 335d M-Sport 1990 E30 2.8 m52b28 conversion |
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04-06-2015, 12:47 PM | #28 |
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http://europeanautosource.com/ seen a good few cars on their site with various wheel nuts including titanium though christ,they are pricy
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04-06-2015, 01:06 PM | #29 | ||
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They are expensive though. At turnermotorsports it is around £200 delivered plus customs for 20 studs and 20 nuts. But £100 of that is bloody shipping What would happen to the locking wheel key, would there not be one? As if you had 4 studs and one locking bolt that would look weird. All i want is some shiny bolts that stay shiny |
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04-06-2015, 01:42 PM | #30 | ||
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http://europeanautosource.com/bbs-li...g-nut-set.html To be honest, I'm not convinced about locking wheel nuts. Someone I know had all four of his M3's wheels stolen while the car was on his drive. It had locking wheel nuts and it didn't seem to be a problem for the thieves...
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04-06-2015, 01:46 PM | #31 | |
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04-06-2015, 01:48 PM | #32 | |
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Think that idea is out lol. Think i'm going to buy some new zinc plated bolts, and then just smear them in wheel sealant and see what happens? |
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04-06-2015, 01:53 PM | #33 |
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That's what I've just done, hopefully they will arrive this week. Hopefully they'll stand the test of time, and if they don't, I'll get rid of the locking nut and just use the plastic covers
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04-06-2015, 01:56 PM | #34 | |
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04-06-2015, 01:57 PM | #35 |
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