Screws Thread Adapter Reducer Bolts Size Changer Double Thread Converter Insert

Female thread ：M2 M2.5 M3 M4 M5 M6 M8 M10. - M2 Pitch: 0.4mm. - M2.5 Pitch : 0.45mm. - M3 Pitch : 0.5mm. - M4 Pitch: 0.7mm. - M5 Pitch: 0.8mm. - M6 Pitch: 1mm. - M8 Pitch : 1.25mm.

eBay