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Old 02-06-2013, 07:26 PM   #1
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Lug bolt shoulder angle

Wow... A couple of threads from me tonight. Anyone know the shoulder angle on our stock bolts? I had to step down to shorter ones with my new wheels after removing the spacers being used on the turbo twists. I picked up some with 60degree shoulders thinking they were correct. But after tightening them I see a distinct ring on the shoulder which makes me think the shoulder angle is less than 60 degrees on porsche wheels.
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Old 02-06-2013, 07:40 PM   #2
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Not sure about the seat angle but if you go to McGard's website it will probablly tell you.
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Old 02-06-2013, 08:29 PM   #3
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The Porsche lugs/seats I've seen have a spherical surface - not conical.
I believe they are R14 x 1.5?? I guess just search for Porsche specific lug nuts.
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Old 02-07-2013, 06:15 PM   #4
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There ya go. Spherical bolts! Only porsche. Thanks guys.
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