License Plate Mounting

[camaronut]

Here's a good one for you guys with original / survivor cars.

What do the screws that hold the front & back license plates look like? 

Are they rounded-headed slotted screws or hex head like the "assembly line" screws sold at Heartbeat City?

Small item, but details are details.  Gotta get it right!!!

[vtfb68]

Round, slotted Pith helmet shapped on a 08E LA '68.
    Victor

[Azure1969Z/28]

1969 Z

[camaronut]

Thanks for the info & pictures!!!  Really appreciate it!