Griffon thread sizes

[mudmonkey]

hi all,

I need some help please, does anyone know what the thread size's are on the primary drive side for the clutch hub nut & the crank drive sprocket nut please ?

the clutch nut is 20tpi.. that's as far as i have managed to get..

cheers all

David

[Phil Hyde]

Thread form identification

Next step is to measure the diameter to the nearest 1/16"

Phil

[mudmonkey]

9/16

cheers

[mudmonkey]

BSCY i think for the clutch nut ?

[Phil Hyde]

CEI Thread

Agreed. Most common cycle thread forms are constant at 26tpi. However, there are always the exceptions and 9/16"x20tpi is a common thread with both taps and dies available. Put 9/16" x 20tpi into a search engine and watch what happens.

By way of interest 9/16 UNF is 18 tpi and BSF 16

Hope this helps

Phil

[mudmonkey]

Phil,

thanks for youre help...most welcome !

p.s.

will we se you at battlesbridge on the 3rd july ?

regards

david

[greeves246]

thread

i have new nuts for clutch