U-Bolts: To re-use or not?

heat the nuts some, do not get the u bolts very hot. sometimes the nuts are very tight and the bolts get twisted-throw them in the scrap bin. look at the moparperf bolts - they are flattened and knurled at bend-like stock. and the nuts are long with a locktite type feature. with slicks I found that the torque is better at what Calvert racing suggests-65