I was on Pilot Error at Arapiles last week and the bolt out on the roof is definitely dodgy and in need of replacing. As many would know its a fixed hanger in the roof with the shaft of the bolt pointing to the ground in the same direction as the force of the pull. It has worked its way out maybe 8-10mm and the hanger is jingling loose. If the bolt fails then someone is looking at a ground fall for sure.
I was thinking of replacing the bolt so have a few questions first.
What is the preferred hardware to replace it with these days?
Is it best to pull the bolt, fill the hole with epoxy mixed with rock dust and then place a new glued in bolt?