Features: Suitable for use in wood and chipboard Countersunk helps achieve a flush finish Supplied in a plastic storage box Specification: 190 of 16mm x 3mm 170 of 20mm x 3mm 90 of 25mm x 3.5mm 70 of 30mm x 3.5mm 70 of 30mm x 4mm 40 of 35mm x 4mm 40 of 40mm x 4mm 35 of 40mm x 5mm 30 of 50mm x 5mm 25 of 60mm x 5mm 20 of 80mm x 5mm Made of Chrome Vanadium Steel - Yellow Zinc Plated