Retapping Imperial thread to metric

[Richard_Griffiths]

Hi all,

Just a quick question I have a metal part on one of my model cars that has a screw hole for a 4-40 screw.

I was wondering if it is possible to retap this with an M3 Tap I belive this is the nearest metric equivilent.

My reasoning is that M3 screws are more common here in the uk and would be less hassel for me to get hold of.

Thanks

Richard