They're bolts not studs. And honestly installing a set of ARP header studs is a good idea. Makes the install way easier and much better clamping/no header bolts backing out.
And make sure you torque them to spec.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.