New replacement 10mm brake hub to rotor bolts, featuring a 8mm allen-head design. These are an upgrade which is recommended for replacement (of the harder-to-torque original "serrated" 10mm heads, which require our part #12014 tool to remove). 4 required per hub, 8 required per car. Note: When installing, make sure to add a drop of BLUE thread locker like "Loktite" to the threads. Torque to 36 lbft