Fork stem Adjusting nut thread?

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LynP
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Posts: 335
Joined: Mon Jan 01, 1990 12:00 am
Location: GWENT UK

Fork stem Adjusting nut thread?

Post by LynP »

Hi, please can any one tell what the thread form is on part no. 021741 fork stem adjusting nut? I believe it to be 1" diameter, but what is the number of TPI? Thanks, LynP
cbranni
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Joined: Sat Oct 09, 2010 9:17 pm
Location: ABERTAWE UK

Re: Fork stem Adjusting nut thread?

Post by cbranni »

Hello Lyn,

Mine is 1" x 26 tpi, I have a 1" x 26 WF tap which is same near as damn it if you need one but no button die.

Colin
only dead fish go with the flow
LynP
Member
Posts: 335
Joined: Mon Jan 01, 1990 12:00 am
Location: GWENT UK

Re: Fork stem Adjusting nut thread?

Post by LynP »

Hi, thank you very much Colin, both for the information and the offer for the use of a tap. The problem I have is that my new stainless adjusting nut does not screw on more than about one or two threads while the lock nut goes all the way down. I did not get chance today but Tomorrow I will see if I can see why. If I have no success I am only up the valley from Swansea and may take you up on your kind offer if your die is a HSS one. Best regards, Lyn
cbranni
Member
Posts: 1439
Joined: Sat Oct 09, 2010 9:17 pm
Location: ABERTAWE UK

Re: Fork stem Adjusting nut thread?

Post by cbranni »

You are quite welcome to borrow the tap which is HSS and very old.

Colin
only dead fish go with the flow
LynP
Member
Posts: 335
Joined: Mon Jan 01, 1990 12:00 am
Location: GWENT UK

Re: Fork stem Adjusting nut thread?

Post by LynP »

Hi problem solved, in a good light I found some small bits of metal stuck tightly in the thread which I removed and all now OK. Thanks again Colin for your offer of help. It is surprising how such small bits in a thread can make so much difference. I now know the thread form, so something else useful I have learned about our bikes. LynP
cbranni
Member
Posts: 1439
Joined: Sat Oct 09, 2010 9:17 pm
Location: ABERTAWE UK

Re: Fork stem Adjusting nut thread?

Post by cbranni »

Hi Lyn,

Glad you sorted the problem.

Colin
only dead fish go with the flow
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