To provide a game machine capable of effectively preventing the erroneous fracture of a fracture screw and also easily performing tightening work in the game machine using the fracture screw.

In the game machine where two components 432 and 450 at two points are connected by the fracture screw 651 which has a screw hole (engaging part) that a driver (operation instrument) DR1 is to be engaged with and has at its head part 652 a separation part 654 which is a part that can be fractured and separated when rotated by torque larger than torque required for tightening, the fracture screw 651 is provided with a housing member 621 as a protective member for covering a part excluding the screw hole of the separation part 654 in the state before being fractured.