A range of loose packed drywall screws featuring a bugle head which countersinks into plaster sheet without tearing the top layer, or a flat head with nibs specifically designed for use with FERMACELL® board. ͍The bugle head screws will set slightly below the surface for a neat finish and the curved surface under the head gently forms the base material without crushing. ͍The flat head with nibs screws feature nibs under the head which ream through FERMACELL® board, which allows the head to sit below the surface, facilitating easy filling.