• Unless you are putting the bolts all the way through suspect something with screws would be better as to my understanding the bolts work through expansion, glue and the torquing action of the bolt hanger.and I don't think the best mechanism for wood. When bolts used in indoor climbing walls they are screwed into a (m10?) T-nut installed through the board. Would agree that this is not likely to be the weak point of the system as long as reasonable screws are used.

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