need help on shock absorbers

[mot]

I have been cleaning some shock absorber bolts and found several i dont know which car/year they fit
the first and largest head is obviously a model A,but what do the two smaller sized headed bolts fit
ive got several different guesses .several have suggested early V8s used the smaller head
the shank length and thread 7/16-20 is the same as the Model A
any help or direction you can point me to would help
thanks
tom