Floor screws have three features: floor screws can save cost floor screws only need low driving torque. The thread design of floor screws incorporates flutes which allow the self tapping action to be achieved at torques considerably lower than those required for standard self-tapping screws. A firming fastening is completed with minimum stress on the floor screws. floor screws only require maximum pull out strength. Fine threads provide a greater area of contact to the steel frame than other types of coarse threaded screws.