Flanged prevailing locknut

[bud smythParticipant @budsmyth20067]

Hi,

first post !

I am trying to find a M5 prevailing locknut as in the pictures. I can find the regular suspects but the diameters are too large.

Any help would be very much appreciated.

Thank you

[bud smythParticipant @budsmyth20067]

[JasonBModerator @jasonb]

With a 7mm hex I would suggest getting an M4 one which is a standard 7mm hex and drilling & tapping it out to M5

[bud smythParticipant @budsmyth20067]

Oh, what a clever idea, that is thinking outside the box.

However, it is a locking flange nut i.e. oval so I guess I couldnt do that on retain the oval at the top which locks the nut ?

[JasonBModerator @jasonb]

Once the M4 on a round one has been enlarged just give it a good squeeze and it will become oval

[Ian PParticipant @ianp]

I think these locknuts are referred to as 'Jetnuts' in the aircraft and racing car industries.

Lots of hits on Google but mostly USA suppliers and sellers. I know I have seen them in some UK catalogues.

Ian P

[JasonBModerator @jasonb]

Would be worth calling to check the hex size but these ones from Demon Tweaks look to have a small hex when compared to the hole.

[bud smythParticipant @budsmyth20067]

@JasonB @Ian P

thats really amasing, I have just ordered the nuts off demontweaks, checked my email and read your post.

You are indeed correct.

Thank you

[mechman48Participant @mechman48]

Bud

​Try theses people they have a good variety of flanged nuts that may well suit your requirement, usual disclaimer…

**LINK**

George

[HopperParticipant @hopper]

Blue Loctite is your friend.

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