Select options Grain Temp Guard Door Mounting Kit $15.99 – $25.99 Door Mounting Kit ¾ inch OD grommet 1-3/16 OD cable gland 1-3/16 hacksaw hole saw (quarter-inch pilot bit not included) Grain Temp Guard Door Mounting Kit (no hole saw) ¾ inch OD grommet 1-3/16 OD cable gland