These sport compact oil pan stud kits from Moroso are designed to simplify pan installation and extend gasket life. They screw into the block and stay there, allowing repeated removal and reinstallation of the pan without stripping aluminum block threads. They have an Allen head socket at one end to facilitate installation. The lock nuts feature attached washers with serrated faces to provide positive grip on the pan rail, and the studs are cadmium and zinc plated to resist corrosion.