Our Double Ended Studs have been coated with black oxide to protect against corrosion, and chemically hardened to enhance their strength.The 12-point flange nuts included in our kit feature an integrated washer-like surface that helps distribute pressure evenly, providing a balanced clamping load and allowing for greater torque to be applied during installation. In addition, the thick flat washers that are designed to improve torque transfer, providing a larger surface area for the nut to bear against. The flat washers help to distribute the load more evenly, reducing the risk of damage to the surface being fastened.Our hardware kit provides superior strength and a secure hold compared to standard OEM studs.Using our Double Ended Studs and 12-point nuts make for an easier installation process and a cleaner, more professional-looking end result.