If they are stripped, running a tap through them may not help. If there is enough material in the nut, it might work, but usually, if the threads are gone, they are gone! Even if SOME threads are left, trying to torque them down usually results in the remaining threads to pull out.
Try the tap fist, but if that does not work, you can get a "Heli-Coil" kit. It comes with a drill, a tap, and Heli-Coil inserts, and insert install tool.
Example: If the threads are M8x 1.25, You get the kit for that size. You will be drilling/tapping it larger with the supplied drill and tap. Then the insert is threaded into the tapped hole, and now you have NEW THREADS!
I don't recall what the size is for strut bolts, it's either M8 or M10. Take one of the old bolts to a part store, and check the size with their bolt sizing chart, and then get the Heli-Coil kit for that size.
R.I.P.
Blue 1972 Chevelle SS-468 C.I.D. B'nM TH400-4:56 posi-Black racing stripes-Black vinyl top-Black int.
Black on black 1976 Camaro LT-350 4 bolt main .060 over
Silver 1988 Festiva L
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