Hi Brandon, yup, the assembly drawings coming with the modules have the heads of the bolts on the inside. I did try to reverse some of them thinking it would be easier, but getting those nuts on the bolts on the inside of the frame is a nerve wrecking experience. Just holding the bolt with a finger while tightening the nut with the driver works like a charm. There is enough friction from the bolt head to be able to tighten the nut without having to go crazy. - Although, I must say, in some places one comes rather close to it
