Ground Bolt Size?

[flashback87]

Can someone tell me what the size of the bolt/screw is that jrichker has posted below? It is for the batter pigtail and extra ground wire for a 3g alt. I think, mine just looks like a self tapping short screw that does not tighten enough when I add the ground wire for the 3g akt.

Thanks!

 

[stykthyn]

It's not that large. I would find a self tapping screw one size larger than what you have and a lock washer.

 

[flashback87]

It's not that large. I would find a self tapping screw one size larger than what you have and a lock washer.

So, is a self tapping screw what Ford originally used?

Thanks!

 

[mikestang63]

So, is a self tapping screw what Ford originally used?

Thanks!

WAAAYYYY overthinking this one. Are you doing this for a concours restoration? If not get any self tapping screw that is maybe 1/2" long and fits in the hole.