Hi
I have just checked one of my handles / spindles, 1940's
the spindle is 5/16 " square & the screw appears to be 3/16" whitworth ,
So 3/16" BSW countersunk.
Hope this helps.
JonB
Would anyone know if the above car looses air con fluid pressure that the pump will stop running.
The car is 9years old & I dont mind paying for a re pressure but not if the motor wants changing.
Thanks
JonB