Author Topic: Wurth 10mm Electrical Body Nut + Washer  (Read 731 times)

BOTIGER1970

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Wurth 10mm Electrical Body Nut + Washer
« on: June 11, 2025, 00:11:56 »
Does anyone have or know where I can purchase the Wurth 10mm Electrical Body Nut + Washer
for installing my side marker lights for my 1970 280SL?  I need 8 of them.
Thanks,
Mark

Jack the Knife

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1964 230SL "Blue Note" -- #009785
2015 G550 "Milk Truck"

BOTIGER1970

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Re: Wurth 10mm Electrical Body Nut + Washer
« Reply #2 on: June 11, 2025, 01:07:15 »
It is a nut with attached washer and a rubber washer that goes over washer. I checked with all vender catalogs including Authentic Classics and could not find the nut assembly.

Jack the Knife

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Re: Wurth 10mm Electrical Body Nut + Washer
« Reply #3 on: June 11, 2025, 02:27:38 »
It is a nut with attached washer and a rubber washer that goes over washer. I checked with all vender catalogs including Authentic Classics and could not find the nut assembly.

It's really frustrating since I just checked myself, and it seems it is only available as a bundle with the whole side indicator.
1964 230SL "Blue Note" -- #009785
2015 G550 "Milk Truck"

BOTIGER1970

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Re: Wurth 10mm Electrical Body Nut + Washer
« Reply #4 on: June 11, 2025, 02:35:46 »
I bought new side maker lights and they did not come with the nut assembly.

WRe

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Re: Wurth 10mm Electrical Body Nut + Washer
« Reply #5 on: June 11, 2025, 06:17:24 »
Hi,
Would plastic nuts be an alternative?
...WRe

Pawel66

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Re: Wurth 10mm Electrical Body Nut + Washer
« Reply #6 on: June 11, 2025, 09:07:35 »
Try searching for "flange nut large flange (not serrated)" or "spring disc nut".

Rubber pads - probably to be fabricated...
Pawel

280SL 1970 automatic 180G Silver
W128 220SE
W121 190SL
G-class

sandcrab59

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Re: Wurth 10mm Electrical Body Nut + Washer
« Reply #7 on: June 11, 2025, 12:54:43 »
I would think the plastic nuts are fine.
Because in the front wheel wells these nuts are subject to all weather conditions.
This will cause rust  and they will be gone.
It is simple to make the rubber behind the nuts.
Tom
71 280SL-8  Euro
67 250 SL
72 220 D
1982 300 SD
1983 300SD
1985 300SD
1931 Model A Ford Roadster
1997 Corvette C5

Leester

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Re: Wurth 10mm Electrical Body Nut + Washer
« Reply #8 on: June 11, 2025, 13:30:48 »
Looks similar to the nuts used for attaching chrome trim to soft top hatch cover:  https://www.authenticclassics.com/Seal-Nut-for-Top-case-trim-230SL-250SL-280SL-REP-p/auth-007131.htm.

Not sure if these referenced above are the correct size you need. Even if they are, I tend to agree that using plastic nuts for that application makes better sense.
Lee Backus
1970 280SL
1963 220SE Cabriolet
1978 450SL - sent off to son in Shenandoah Valley
1985 500SEC - sent off to son in Shenandoah Valley

wwheeler

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Re: Wurth 10mm Electrical Body Nut + Washer
« Reply #9 on: June 11, 2025, 15:28:57 »
That is a common style nut. Has a captive washer that won't spin as the nut is tightened. https://belmetric.com/nuts/spinning-washer/ American cars used them in mass in the 60s and on.

Then it also has a rubber pad to seal. Just go buy a a 1/16" sheet EPDM rubber and make your own seal pad.

I have those same side markers. I am thinking the 10mm is the hex size, not the screw size. You'll have to measure the screw size to be sure.   
Wallace
Texas
'68 280SE W111 coupe
'60 220SE W128 coupe
'70 Plymouth Roadrunner 440+6

BOTIGER1970

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Re: Wurth 10mm Electrical Body Nut + Washer
« Reply #10 on: June 11, 2025, 22:04:32 »
Thanks all, for your responses.  I think the plastic nuts might be a good solution.  The Authentic Classics nut is not the right size.

 

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