Fluid control valve

A fluid control valve comprising:

• a shaft member that moves along an axis of the shaft by a driving force from a driving source connected to one end of the shaft member;
• a holding member including a bottomed tubular portion into which the other end of the shaft member is inserted with a radial predetermined gap and which has a recess formed to be recessed radially inward from a surface of the tubular portion, and a valve body formed by fixing a sealing member to an outer periphery of a flat plate shaped main body portion that extends radially outward from the tubular portion;
• a housing that includes an inlet and an outlet of a fluid, has an annular valve seat on which the valve body abuts to block a communication between the inlet and the outlet, and accommodates the shaft member and the holding member,
• wherein the other end of the shaft member includes a first region formed to be reduced in diameter toward a bottom portion of the tubular portion and including a first abutment portion abutting the bottom portion, and a second region formed to be reduced in diameter toward an opposite side to the bottom portion from a boundary surface with the first region and including a second abutment portion abutting the recess, and
• a distance from a center of the boundary surface to the first abutment portion is shorter than a distance from the center of the boundary surface to the second abutment portion.