Just a suggestion, instead of doing the "rotate it many times around that point" manual way.
Try D,burs Align plugin:DBUR_Align_v1.0.1_5.rbz it's a lot faster.
Find at extension warehouse here:
http://extensions.sketchup.com/en/content/align
I used it to make this sample:
http://s5.postimg.org/opuh4kwg7/dburalignsample.jpg
Just had to right click on the bolt plate and select Align component/group and align the red &green axis on the part you want the bolts on and it would copy and rotate it into place.