Titanium front hardware kit. Comes with (4) front flush mount studs and (4) nuts. Studs and nuts are 5/16-18 thread. The studs feature small hex at end to help install stud and acts as a aid to get nut started. Studs should be installed into hub with Loctite. Studs are also flush mount so you can use front rotor setup. Kit saves 32G over steel.