Probably. The 3/8-16 is a coarse thread and the NC is the indicator that that is so.prkaye said:For the tie-down bar on the -9, we have to tap it. The plans say "tap 3/8x16x1 deep". The tap that I picked up is labelled as "3/8-16 NC". Is this suitable?
I dont know about the -9, but the tie down extrusions for the -8 are too thin to helicoil. It possabley could be done, but would leave very little material on the sides.captainron said:I think I would go straight to Heli-Coil, for a permanent stainless-steel threaded part.