Hey gents, so I bought a screw on gas pedal

as my car was missing one. Turns out upon closer inspection that have a flange or knob at the end of my linkage where the pedal is supposed to go.
Did the model A ever have this? Or is it from a different model??? Any ideas on what to do? Grind it off and cut threads into it? The actual linkage bolts right in and works great.

as my car was missing one. Turns out upon closer inspection that have a flange or knob at the end of my linkage where the pedal is supposed to go.Did the model A ever have this? Or is it from a different model??? Any ideas on what to do? Grind it off and cut threads into it? The actual linkage bolts right in and works great.