Wood screws for carpentry fittings (WINTECH screws for carpentry fittings) are specially designed for all angles and other sheets with a thickness of up to 2-3 mm. These screws have a half-round head with reinforcement - special reinforcement of the shank under the head, which precisely copies the hole of the fastened fitting and thus helps to achieve a precise and secure connection. For use with 5 mm holes. TORX 20 groove, surface finish: white zinc.