When joining pieces of wood together using a carriage bolt, the square head on the bolt can become stripped in the hole, making them hard to tighten.. Wood joint strength testing i had previously tested a mortise and tenon joint against a dowel joint for strength. in that test the mortise and tenon joint won.. A model for prediction of a yield load in bolted wood joints is reviewed and modifications to the theory presented. the model predicts a joint load at which the bolt.
