mazdatweaker
+1y
Save your money and re-use the head bolts.
They are not going to cause you any problems.
Make sure you clean out the holes they screw into though. If you don't, that will.
Head bolts are thicker than wheel studs. And just like wheel studs, you don't have to replace them, just because the torque was released to service the wheel.
I think the torque on the head bolts is about 85 foot pounds, just like a wheel stud.