Industrial Grommets help to prevent these risks and ensure that wires and cables are protected and managed responsibly. In the automotive industry, various rubber grommet sizes are used to seal important engine components and body applications. Without grommets, wires and cables would be shaken by the vibrations of the engine. Industrial Grommets are rings used to protect holes in thin materials like fabrics, sheet metal, and carbon fibre. These are used so that wires, rope, or cords can be put through your material without tearing through or misshaping the hole. You can find grommets made out of a variety of materials and in many different sizes with varying hole diameters.