PROBLEM TO BE SOLVED: To allow a screw that is fixed on an object with slanted to a fixed object to be more securely fixed on the fixed object and to be provided on a region to which a high load is applied.SOLUTION: A fixing structure including a lower hole 6 provided on the fixed object 1 that is fixed on a surface of the object A, a female screw 7b that is formed around the lower hole 6 and on whose inner periphery face a plug 4 is fastened, a counterbore whose bottom face 7a has a cylindrical inside shape or inner spherical shape, and a head 8 that is provided on a screw 3 piercing through the lower hole 6 to be fastened on the object A and has a shoulder part 8a whose shape is complementary with the bottom face 7a of the counterbore is provided.
