bumper shock bolt size

[Barjavel]

Hi all,

Does anyone know the size/pitch of the bolts that hold the bumper shocks onto the frame? I stupidly threw them out when removing the original monstrosities, and now need to buy new bolts to mount the replacement blade-style chrome bumpers. (Car in question is a 1981; I assume the bolts are the same size for all the years that had the bumper shocks?).

[Bagneaux]

I measured one I have as 14 x70 mm. I don't have a nut to check the pitch but it looks like 1.25 but that is strictly a guess.