For pricechoose optionsSelect Option 3.9 x 25mm Pack 1 000 3.9 x 35mm 3.9 x 45mm 3.9 x 50mm 3.9 x 55mm 4.5 x 75mm Quantity Add to Basket Senco DuraSpin® Collated Screws for Drywall to Wood applications. Phillips No.2 drive, black phosphate finish, coarse thread, bugle head. 50 screws per strip. CE-marked (EN145566). Suitable for both cordless and mains operated machines.