Front Bumper Bracket bolt size for 68 charger

[68charger383]

Does anyone know the size bolt ( ex 1/2 X 1") I need for the front bumper side bracket bolts. The ones on the side of the front bumper which screw into the fender/body.

Mine where missing and I'm getting ready to reinstall it.

Thanks in advance

[terrible one]

Bump for my sake.

[gtx6970]

1/2" -13 x 1.5" long with a 1.25" free spinning captive washer . it has a 3/4" hex head btw