The Dewalt DWF4100350 Collated Drywall Screws can be used in a variety of collated drywall screwdrivers from different brands For Dewalt, Makita, Senco and other makes of collated drywall screwdrivers. Features: Collated per 50 screws Black phosphate coated Drywall screws with bugle head Constant and sharp needle point for fast and easy installation Specification: Weight: 2kg 35mm x 3.5mm Pack Quantity: 1000 Collated per 50 screws