Product Description GRK Cabinet screws have a patented design for specific use in cabinet construction and installation. Cabinet screws are manufactured in a #8 gauge (4mm) diameter. These screws are thin enough to prevent most material splitting. The washer head design presses flush against any material surface. Some builders even use the GRK Cabinet screws in vinyl siding installation. From the Manufacturer GRK Cabinet screws have a patented design for specific use in cabinet construction and installation. Cabinet screws are manufactured in a #8 gauge (4mm) diameter. These screws are thin enough to prevent most material splitting, while providing sufficient strength to guarantee a secure installation. The washer head design presses flush against any material surface. Some builders even use the GRK Cabinet screws in vinyl siding installation.