[6pack] Torquing rod bolts

[John North]

I have read that these bolts should be torqued in three equal stages.
 Given the spec range of 38-46, I tried 20, 31 then 42.   I backed off
the nut between the three torques.   I didn't have the guts to
complete the last one, because the bolt made at least two full turns
after being finger tight.   When I removed the bolt, there is clear
thinning in the last 5 or so threads and the bolt has stretched .114.

I tried just torquing a bolt up to 40 and got about 1.5 full turns
after the bolt became finger tight before I ran out of courage again
and stopped.   This one has stretched about .015, but did not torque
up before I gave up.

Does this sound right or should I suspect the bolts are not good?   I
am real scared of shearing off a bolt in the rod...

John North