SQ is the SQUAD

this is on my a6/z6 mini me. i installed the head wit hthe arp head stud, arp lube and 70lbs tq. car ran good, i h****ed up the radiator and oil started mixing with the oil. car ran all of 2 mins. so i pulled the head, decked the head and ordered a cometic head gasket. i took out all the bolts to clean the holes, some of them had moisture in them. i did this one by one returning all the bolts to there proper holes. but theone to the far left in the back sits 1/2 inch hight then all the others. i took it back out, cleaned it again, double checked the hole and it still dosent go down. when i go back outside ill pull that one out and another to check the length to see if there the same. i realy doubt the bolt streched 1/2 inch. anyone else have this issue?

SQ is the SQUAD

disregard, HMT wins with the correct answer, i am all set. thanks anyways