 A question about lug nuts |
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| ahdoman |
  Nov 17 2009, 03:53 PM
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#1
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It's phonetic...Ah-D-O-Man (Audioman)  Group: Members Posts: 667 Joined: 7-November 05 From: Santa Clarita, Ca. Member No.: 5,084 Region Association: Southern California  |
Is it OK to use aluminum lug nuts on a steel wheel?
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Replies(1 - 8)
| underthetire |
Nov 17 2009, 05:17 PM
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#2
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
I'd never use aluminum on a street car ever. Ball seat or taper seat?
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| pcar916 |
Nov 17 2009, 05:49 PM
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#3
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Is that a Lola? Group: Members Posts: 1,523 Joined: 2-June 05 From: Little Rock, AR Member No.: 4,188 Region Association: None 
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I've always used steel nuts on aluminum wheels because you can't race with the aluminum ones and the studs are too long on one set of wheels because of the offset. Never had a problem with corrosion, but I always lightly grease the tapered shoulders. For that matter, the studs are steel anyway, into an aluminum hub in the front.
The question is, what's the taper angle of your wheels and how much of the shoulder will be in contact with them? It has to match the lug nut shoulder angle and if the nuts are aluminum, make sure you have lots of contact across the faces. Some steel wheels have really skinny shoulders for the nuts to contact. If yours are those I'd consider the steel nuts regardless. Good luck |
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| jcd914 |
Nov 17 2009, 06:36 PM
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#4
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Advanced Member Group: Members Posts: 2,081 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
I would not use aluminum lug nuts on steel wheels. I might consider it if the wheel and nut had large contact surfaces that matched each other.
Porsche has been using aluminum lug nuts on aluminum wheels on street cars for a few decades now. I think they started with 911's in 1964 but maybe some 356's had them. They had a service bulletin instructing the use of anti seize on the lug nuts because there were too many nuts sticking to the wheel, making removing them quite difficult. Clean bare aluminum nut hammered in place with an impact gun tended to weld them selves to the wheels. Jim |
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| ME733 |
Nov 18 2009, 09:27 AM
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#5
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Senior Member Group: Members Posts: 842 Joined: 25-June 08 From: Atlanta Ga. Member No.: 9,209 Region Association: South East States |
(IMG:style_emoticons/default/popcorn[1].gif) Porsche also made TITANIUM lug nuts. In my opinion,... that for steel wheels you use STEEL lug NUTS, anti sieze the studs or bolt threads..... Obviously STEEL lug nuts are stronger. obviously STEEL lug nuts will not expand or contract as much as titanium or aluminum. Obviously STEEL lug nuts will take hammering with an impact wrench much better....and NO LUG NUTS ...furnished as O.E.M. parts for the 914 were titanium or aluminum..Obviously the 914 (excpt 914-6 ) HAS ONLY FOUR BOLTS to attach the wheels ..Use STEEL LUG NUTS.., or STEEL BOLTS. For other Porsche cars aluminium lug nuts may have been furnished, with an ALUMINIUM wheels whereby the aluminum wheel and nut might expand and contract together.(this is an assumption on my part)... On the 356 porsche all O.E.M. lug nuts were STEEL.....for your consideration.
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| SLITS |
Nov 18 2009, 11:22 AM
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#6
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
I am assuming this is on the /6 conversion. Use the open ended steel lug nuts with steel wheels.
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| IronHillRestorations |
Nov 18 2009, 11:41 AM
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#7
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I. I. R. C. Group: Members Posts: 6,719 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None
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Steel on steel and aluminum on aluminum, except on track cars like Marty said.
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| 6freak |
Nov 18 2009, 11:44 AM
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#8
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MR.C Group: Members Posts: 4,740 Joined: 19-March 08 From: Tacoma WA Member No.: 8,829 Region Association: Pacific Northwest |
QUOTE(ahdoman @ Nov 17 2009, 01:53 PM)  Is it OK to use aluminum lug nuts on a steel wheel? no! vs versa yes |
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| andys |
Nov 18 2009, 01:34 PM
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#9
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Advanced Member Group: Members Posts: 2,165 Joined: 21-May 03 From: Valencia, CA Member No.: 721 Region Association: None
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Steve,
Steel on steel. BTW, these guys have everything...... https://www.ezaccessory.com/ Does your wheel require 60 degree cone? Here's the link: http://www.ezaccessory.com/Open_End_Acorn_...hort_p/1509.htm Andys |
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