This pack of 2000 assorted yellow zinc plated double countersunk wood screws are constructed from durable steel. Whether you need an 350x (3.5 x 30mm), 350x (3.5 x 40mm), 350x (4 x 40mm), 350x (4 x 50mm), 250x (5 x 50mm), 100x (5 x 60mm), 100x (5 x 70mm), 100x (5 x 80mm) and 50x (6 x 100) screw you will be prepared for the job. Recommended for use on plasterboards. This pack is ideal for a range of DIY projects.