The screws’ bugle heads make drywall installation easier, especially when used for ceilings or high walls. Other benefits of this screw type include less damage to the drywall paper’s coating and protection from accidental punctures from screw guns. They are suitable for use in the construction of partition walls, ceilings, and home interiors. If you’re working on moisture-prone surfaces, it’s recommended to use screws made of stainless steel, which have anti-rust features.Bugle head drywall screws share a variety of features that make them ideal for drywall projects. One feature is their threading, which makes the installation process faster and more secure. The flat head design reduces the chances of causing damage to the wall, making them an optimal choice for beginners in the DIY/home repair projects. These screws have excellent grip due to their threading and taper to prevent over-drilling. Lastly, they offer durability and longevity, making them an overall cost-effective choice for affordable maintenance of interior walls and ceilings.PL: PLAIN YZ: YELLOW ZINC ZN: ZINC KP: BLACK PHOSPHATED BP: GREY PHOSPHATED BZ: BLACK ZINC BO: BLACK OXIDE DC: DACROTIZED RS: RUSPERT XY: XYLAN Head Styles Head Recess Threads Points