I applied to the threads, adjusted in place and tighten. Left it for quite some time before i drove again, so cant say how long it took to cure . But its working at this stage. The screw on mine is full thread and phillips drive, so dont know if it is correct one.
Many things has been done or changed by the previous owners.
I can write books about it thru the years with cars i had and some i still have.
Cheers.
Adriaan.