Chromium plated brass wood screw with slotted head. Stocked in a range of sizes. 4 gauge - 13mm and 19mm, 6 and 8 gauge - 19, 25, 32 and 38mm. Price per packet of 10 pieces. Screw gauge size (SWG) relates to the diameter of the stem under the head so 4g = 2.9mm, 6g = 3.5mm and 8g = 4.2mm diameter. --