'70 RR Front Fender Bolts(headlight area)

Howdy,

Trying to find correct capture washer size for these 5/16 bolts. 2 bolts per side that mount to the radiator support in the headlight bucket area.
3/4" or 7/8" diameter? Thanks!

They are available from almost all vendors, R/T Specialties, Year One, Mega Parts, Dixie parts etc. Radiator mounting bolts

Fender bolts, I know they can be had everywhere. I think I have them if the capture washers are the correct size. 3/4" or 7/8".