Joint connector and method for manufacturing joint connector

A joint connector comprising:

• a ground terminal member made of a conductive metal;
• a primer treatment portion formed by applying a primer onto the ground terminal member;
• and
• a housing to which the ground terminal member is insert-molded, wherein
• the ground terminal member includes:
• a plate-shaped fixing portion that is fixed to a ground portion of a vehicle;
• a body horizontal plate portion that extends from the plate-shaped fixing portion;
• a body rising plate portion that is formed by bending the body horizontal plate portion in a rising direction at a bent portion;
• a terminal connection portion that is provided above the body rising plate portion and that is formed with a plurality of terminal connecting portions electrically connectable with a counterpart terminal;
• and
• a crank-shaped bent portion that is bent in a crank shape in a vicinity of the terminal connection portion in the body rising plate portion,
• the ground terminal member is configured by integrally forming the plate-shaped fixing portion, the body horizontal plate portion, the body rising plate portion, the terminal connection portion, and the crank-shaped bent portion,
• the housing has a gate mark formed by filling a molten resin on a surface of the housing on a side opposite to a direction in which the terminal connecting portions protrude, and
• the primer treatment portion is applied to an outer peripheral surface of the body rising plate portion on a side of the body horizontal plate portion with respect to the crank-shaped bent portion.