General description Senco DuraSpin® Collated Screws are designed specifically for drywall to wood applications, providing a reliable fastening solution. These screws feature a bugle head and coarse thread, ensuring a secure grip in various materials. Technical specifications Size: 3.9 x 50 mm Drive type: Phillips No.2 Finish: Black phosphate Thread type: Coarse Packaging: Pack of 1000 screws (50 screws per strip) Compatibility and accessories Suitable for both cordless and mains operated machines Other information CE marked (EN145566)