OMPHOBBY M4 Helicopter Socket cap screw M2.5x6mm OSHM4079 Sale! from 149 /per Qty. Sold Out This is a replacement socket cap screw M2.5x6mm for the OMPHOBBY M4 Helicopters Contents socket cap screw M2.5x6mm-10 Qty available:0 SKU:OSHM4079