Professional wood screws for commercial or occasional use Countersunk wood screws 4mm x 20mm wood / chipboard screws This listing is for a pack of 28 wood screws Pozi single thread countersunk wood screws Manufactured from steel for maximum strength and durability Zinc plated steel for rust and corrosion resistance PZ2 (Pozi head) SPECIFICATIONS • Countersunk Wood Screws • Manufactured from steel • Zinc plated • Total length – 20mm • Thread width – 4mm • Head size PZ2 • Pack size – 28pc