rubber grommet smt connectors aluminum heat sinks RUBBER GROMMET You want this to be just large enough to accept the rubber grommet.Feed the wire through the rubber grommet on the firewall and into the passenger compartment of the car. The enlarged head of the pin is pushed through a rubber grommet inserted in the frame of the hopper when the bar is not being used. Make sure the alternator cooling air shroud has a rubber grommet at the A+ or main power wire lead. These feed into the headlight bucket and are weatherproofed via a supplied rubber grommet. Use the silicone spray to ease these wires through the rubber grommet. To make it easier, each of the wires' connectors need to be clipped off before feeding them though the rubber grommet to the turn signal housings. It is slipped onto the lip of the disposer, and then the mounting ring compresses this rubber grommet so it grips the lip securely; there is no metal-to-metal contact between the disposer and the sink. Some disposers use a scheme here where a rubber grommet is fit around the end of the outlet pipe, and then the pipe and grommet are secured to the outlet of the disposer itself with a bolted-on flange that compresses the rubber grommet enough to secure a watertight seal.