front brake rod thread size ?

[Vincent.vanGinneke]

Is 7/32 x 32 the correct thread on the front brake rod?
If not what is it ?

[ray.tolman]

Vincent,
7/32 x 32 is correct. I purchased a tap/die to make up my own as the original brass T nut was thrashed.

Ray

[Vincent.vanGinneke]

Thanks Ray, yes, like I need to do, the one I have is very sloppy.
What a odd size !

[simon.holyfield]

I'm sure my reproduction brake rod is smaller than that.

Are the original ones 7/32" all the way to the top?

[ray.tolman]

Hi Simes,
Yes, the lower end of the front brake rod, milled flat on both sides to fit the brake arm, is threaded 7/32 x 32 tpi.
Unfortunately, having the 2 flats means you cannot chase the threads with a die.

I have since removed the chrome and painted the rod black.
Making a new brass t-nut tightened the assembly up nicely.
Ray

[andyhughesflattankarielpre25]

Hi all, pre ww1 all sort of sizes of thead were used there was even different types of whitworth before the bsw.Douglas used some odd sizes and theads along with Akd and others,they all seemed to have different ideas and reasons for this.

[Vincent.vanGinneke]

Recieved a quote for one handtap set 7/32 x 32 ...........198,46 Euro !
Must be very good quality, perhaps to good for the one nut I want to make.

[Knud.Degnbol]

It must be the wrong place to buy from.
I bought the same size of tap, but I can't remember if it was from Tracy Tools or Unithread.
The price was quite different.
Knud

[ray.tolman]

I use Tracy Tool.
http://www.tracytools.com/7-32-x-32-tpi-me
Good quality for my use, a good price and quick delivery.
Ray

[simon.holyfield]

I'm sure my reproduction brake rod is smaller than that.

Are the original ones 7/32" all the way to the top?

I was wrong about this. The repro one I have from Drags measure up to be about the right size - it's painted too, so i can't be too accurate.