Why can I get the screws to sit flush with the HardieBacker™ cement board?
» The screws that you are using do not have the power to rout out the material in order for the screw head to sit flush. Be sure to use HardieBacker™ cement board screws for wood or metal, as they are specifically designed for the job. If you continue to have difficulties, we recommend switching to galvanised clout nails.