Tip if you need self-locking, heat resistent, reusable flange nuts

[GriffX]

go to Mercedes. They have designed a special norm, Mercedes Benz Norm 13023 for such nuts, M6 - M16 grade 10.
Instead of a nylon ring they are oval and you can reuse them several times.

I used them for removable panels and even after 10 times, they are still tight

 

[pass1over]

I always called them a mechanical locking flange nut. Available at fastenal, grainger, etc. Metric or standard.

 

[fast Ed]

Ford used that style on some torque converter to flexplate attachments and occasionally suspension fasteners.

 

[pass1over]

That style of nut is also on the windshield wiper posts.

Just be careful if any lock nut is removed and reused a lot, it's effectiveness diminishes.

 

[GriffX]

That style of nut is also on the windshield wiper posts.

Just be careful if any lock nut is removed and reused a lot, it's effectiveness diminishes.

I use them for a removable panel overhead, they clamp on the whole length it takes a long time until they wear, not comparable to nyloc or this metal ring clamp style. And, usually I have to order them online in Germany, all hardware stores gone since the devastating lockdown, so I can go to Mercedes.

 

[pass1over]

I did notice you were in Germany and assumed it was different over there sourcing stuff like this.

Even those will wear out eventually if they are taken off and on a lot. That style usually tends to remove material from the screw/bolt, especially if it's less than a grade 8 or class 10.9 bolt.

 

[Forty61]

That style of nut is also on the windshield wiper posts.

Just be careful if any lock nut is removed and reused a lot, it's effectiveness diminishes.

As long as you tighten it to the point you fart a little and say "yep, that's good" they can be used indefinitely.


Please nobody actually follow that advice.

 

[rocknrod]

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