Dutcotennant provides everything you need to properly join two flange connectors (assembly tools not included). Kits include nuts and bolts to securely fasten the flanges together while gaskets provide a seal to prevent hot exhaust gases from escaping between the joint. This gasket is designed for hot gas applications where extreme heat is present. The fiber facings are mechanically bonded without the use of any adhesives, proving stability and integrity even when exposed to high heat, scrubbing, and vibration. These gaskets are asbestos-free and are light brown in color.