OMPHOBBY M4 Helicopter countersunk head hexagon socket screw M2x3mm OSHM4070 Sale! from 149 /per Qty. Add to Cart This is a replacement countersunk head hexagon socket screw M2x3mm for the OMPHOBBY M4 Helicopters Contents Countersunk hex screw M2x3mm-8 Qty available:1 SKU:OSHM4070