The Panther is designed to use an array of different rivets, and these requirements will be dictated in the plans. With that said, you as the builder have the option to go with flush/blind, protruding or solid rivets for the skin to rib/spar/fuselage/hinge assembly. You can also choose stainless or aluminum/steel rivets. For this reason, except for with the tail kits, we will not be including rivets in our kits. We will be working with the major aircraft supply houses on supplying hardware kit packages for the Panther.