A device connector is provided with a metal reinforcing plate (30) including an opening (31) for permitting the passage of terminal fittings, a housing main body (10), a flange (11) formed by insert molding using the reinforcing plate (30) and synthetic resin, a device-side housing portion (12) to be accommodated into a connector mounting hole, and terminal fittings (15) held in the housing main body (10) while being passed through the opening (31). The reinforcing plate (30) is beveled along a peripheral edge thereof to form an R-surface (36). Thus, the device connector is produced at a low cost and eliminates possible starting points of cracks created in the synthetic resin covering the peripheral edge of the metal reinforcing plate (30).