This jointed system using specialized screws, called large diameter bolts, is one of the moment resisting joint systems. This system is characterized by cutting an internal thread directly to wood, by threading a large diameter bolt into the wood. In this study, the tensile behavior of these large diameter bolts embedded into the wood was evaluated through various tensile tests. Bending behavior of this jointed system was evaluated through two types of bending shear tests. FEM analysis had also done to know the distribution of shear stress of wood around the large diameter bolt. Then it was made clear that tensile strength was able to be estimated from the shear strength of the wood itself and the area around the large diameter bolt. Bending strength was also able to be estimated from tensile behavior.
