"Pack of 200 one piece self-drilling acnhor designed for use in hollow drywall/plasterboard/gypsum wallboards for light duty loads .Light duty fasteners provide quick fixing solutions designed to self-drill into the material with minimal damage to the substrate and spread the load to prevent pull out. Fixing includes screws, all supplied in a handy storage box with movable dividers, keeping everything organised and ready for when you need them.