We've partnered with ARP to update our studs and nuts, giving you the most reliable and robust option available for mounting your turbo to our flanges. These updated studs feature a hex provision so they can be properly tightened during install. High quality 6 point flanged nuts help ensure even clamping force. These studs are tough enough to be reused over and over and give you the peace of mind that you don't have to worry about them breaking unlike the cheaper options on the market. You already came here looking for the best turbo flanges in the world, finish it off with the best hardware too!