bulge lugnuts

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bobmc
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bulge lugnuts

Post by bobmc » Mon Nov 26, 2018 8:56 am

I"m behind the times, what does bulge lug nut refer to?

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Re: bulge lugnuts

Post by Kevin Johnson » Mon Nov 26, 2018 2:57 pm

bobmc wrote:
Mon Nov 26, 2018 8:56 am
I"m behind the times, what does bulge lug nut refer to?
https://www.youtube.com/watch?v=HfTS4mN0Gbo&t=922s

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Re: bulge lugnuts

Post by bobmc » Tue Nov 27, 2018 7:53 am

for example Dorman 711-300 is described as radius seat, 711-306 described as chrome bulge. Over the holiday I wanted to order what I consider name brand custom wheels, the brand goes back to the 1960's. Their web site describes diameter, width, bolt pattern, and backspace, but nothing about lugnut style or valve stem hole. I figure order from Amazon-it's easy to return the wrong style. I was surprised to find there are terms in the descriptions that mean nothing to me, now that the holiday is over I can probably get the correct info

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Re: bulge lugnuts

Post by Kevin Johnson » Tue Nov 27, 2018 11:07 am

Image

The bulge covering what would be the open/exposed threaded end.

Now you know about nuts like this that are created by caps -- and the general technique is the subject of lawsuits.

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Re: bulge lugnuts

Post by bobmc » Tue Nov 27, 2018 2:55 pm

I should have looked at Lugnutguys. Bulge nuts have smaller hex than the wheel seat, you can't bottom your socket against the wheel or drop the nut too deep into your socket

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Re: bulge lugnuts

Post by Kevin Johnson » Tue Nov 27, 2018 3:45 pm

Sorry about giving you the wrong info -- I just finished watching that episode by Lehto and remembered problems that I had with corrosion under the caps.

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Re: bulge lugnuts

Post by MadBill » Tue Nov 27, 2018 10:01 pm

And when the cap flakes off while you're changing a flat, the inner hex is too small for your wheel wrench, so... #-o
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Re: bulge lugnuts

Post by FC-Pilot » Fri Nov 30, 2018 12:44 am

I worked for six years at the ford proving grounds in AZ and dealt with their crappy lugs. If you use an impact on them three times the chrome cover starts to deform and hold onto your socket. Then you could not get the socket on. You either would need to hammer a socket on and tap it on the side in multiple directions to get a few more uses out of it or we would just cut the cover off and use the next size smaller socket. I only did that to a few hundred sets.
"It's a fine line between clever and stupid." David St. Hubbins

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