8inch single sided brake spindle

[nimrod650]

hi are there two spindle thread sizes for 8ins s/sided fork legs 9/16ths inch and 11/16ths l/h thread 

[chaterlea25]

Hi,
The spindle and fork leg are 9/16 x 20 tpi LH
This is the same thread used on old fashioned cycle pedals, an older cycle shop will have a tap if the fork leg threads need cleaning up

Some C11 and maybe early B series used a 1/2 in. spindle but I think this had a nut on the end??

HTH
John