The Nitrous Express 3-7/8 inch long carburetor studs are designed to make it easy to install your carburetor and hold the carburetor gasket in place. They are manufactured from high quality steel and feature a black oxide coating for maximum durability. The Nitrous Express carburetor studs are available in different lengths, so they can be used with or without carburetor spacer plates. Comes as a set of four.