Locking wheel nuts

[SNP]

Hi all, just wondering if anyone can help with what wheel nut size I need to consider when ordering wheel locking nuts?


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[Hotzenplotz]

SNP

As far as I can remember the thread of the lugs is M14x1,5 .
S-Tec calls them "ball-joint nut" on their website, this indicates a spherical contact area towards the rim, not a conical like e.g. required for current Transit rims.

[SNP]

Hi, and thanks for the fast reply! Do you have a link to the website, please?

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[Hotzenplotz]

don't get me wrong, the lugs offered by S-Tec are the standard lugs you have on your truck..
They have no locking lugs in their offerings.

their url is https://www.puch.at

[SNP]

I kind of guessed that but have found loads on Amazon with the right thread configuration but not so much in regards to the 'ball-joint'.

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[rmel]

Be EXTREMELY careful. If you are using the standard wheels the lug nuts
are M14x1.5mm BALL seat. That is, the seat is formed as a sphere -- as
Albert had indicated. There's no locking per se other than the seat under
a torqued load. And my advise -- don't torque beyond 100 ft-lbs, then after
about 50 miles re-torque again to 100 ft-lbs.

Porche 911 uses the same lug size and seat.

https://www.ebay.com/itm/20-PORSCHE-OEM ... 4062!US!-1

[SNP]

Thanks for the heads up. This will be only for wheel locking nuts. Can you confirm the 911 locking nuts may 'possibly' work?

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[rmel]

I don't know what you mean by wheel "Locking nuts" ??

And I just noticed you are under the "Diesel Pinz" section
and not the Gasser Pinz section.

Someone with a 716/718 might want to jump in and respond.

Devil is always in the details

[SNP]

My bad! Didn't even realise. Wheel locking nuts to stop 'sticky fingers'!

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[rmel]

Ya, my bad too -- now it's obvious

[pcolette]

Be EXTREMELY careful. If you are using the standard wheels the lug nuts
are M14x1.5mm BALL seat. That is, the seat is formed as a sphere -- as
Albert had indicated. There's no locking per se other than the seat under
a torqued load. And my advise -- don't torque beyond 100 ft-lbs, then after
about 50 miles re-torque again to 100 ft-lbs.

Porche 911 uses the same lug size and seat.

https://www.ebay.com/itm/20-PORSCHE-OEM ... 4062!US!-1

I'm curious why you recommend torqueing to 100 ft-lbs. The 710/712 service manual specifies 200 Nm (147.5 Ft Lbs). I've always torqued to 145 Ft Lbs and have had no issues. Are there different specs for the 716/718 series?

[rmel]

Couple of reasons. First 100 ft-lbs is more than sufficient for a M14 stud.

The primary reason for reduced torque is one of thread wear potentially
leading to failure. At 200 Nm, that is actually beyond the recommended
limit for 8.8 hardness. I also got a recommendation from Scott @ EI, a
number of years ago, which I am sure they have seen 1,000's of cases.

I also apply a reduced torque to the limit-straps and shock mounts for the
same reason.

Oh, and BTW Porche M14x1.5mm torque is 130 Nm or 96 ft-lbs.

These are old buggies that need a wee bit of stress relief

[Joeri]

Well the 710/712 uses nuts.....the 716/718 uses bolds

[David Dunn]

As Joeri has said. TDs use a bolt, not a nut.

People need to be careful what they post in the sections. What may apply to a gas Pinz will probably not apply to TD, and vice versa.

[Tjerk]

14 x 1,5 mm Radius seat locking wheel nuts can be found at:

https://www.johnbrownwheels.com/product ... nuts-LN11C