The product is a box of 40mm collated drywall screws from British Gypsum. These screws are made of steel with a metric thread size of 0.6 cm and a round head style. The drive style of these screws is Phillips, making them easy to install with a compatible screwdriver. This product is ideal for DIY projects involving drywall in homes, furniture, and other DIY applications. 1000 per box