Prusa i3 Hephestos - X Carriage M8

Insert M8 Nut with 11mm head and 10mm long with solder iron in plastic,
if u cant find 10mm long, buy longer and cut it to 10mm like i did,
drill a 3mm hole in m10 washer (holes are like on m8 lead screw nut)
drill a 2.5mm hole in plastic and assemble like on picture