When putting the wings back on in December I noticed that I was over torquing and damaging some AN3 bolts on the struts. I figured this must be because I was using a torque wrench that was at the very bottom end of its range when set for 20 in-lb for AN3 bolts. So I bought another torque wrench (Tekton 1/4" drive with 10-150 in-lb range) which is better suited for this size of bolt, plus a lot of replacement AN3 bolts and lock nuts. Then over three sessions I replaced most of the AN3 bolts and nuts on the whole plane, torqued them properly, and marked them with yellow torque seal. One AN3 bol,t shown in the bottom image, was stripped such that the nut would not come off. I ended up slicing the bolt apart with a Dremel so that it could be replaced.
