I just went to my local Fastenal store and bought some 9/16" grade 8 bolts and a 14mm bolt to replace the bolts on my front track bar. When I got home, I noticed that they gave my course thread bolts instead of fine thread bolts. Does this really matter? I know that the Northridge kits comes with fine thread bolts. I also bought the all metal lock nuts so I'm not worried about things working loose. The load on the bolts are more shear than tensile so I would think that it would not really make much of a difference.