About this 3D model

I have some beautiful IKEA INGOLF chairs. Unfortunately, over time, there's a part without screws that becomes loose and causes structural weakening of the chair. I've designed this small insert to be screwed into these cross-sections of the chair (as shown in the figure) to make it sturdy and solid again. Two self-tapping wood screws with a diameter of 2.5mm and a length of 15mm are required for the installation. The piece features a recess for the screw head to ensure it doesn't protrude