● This is a long wood tapping (course thread) screw with a countersunk head. Head: Countersunk M6 x 80 / 20 pieces Iron Carburizing and hardening Unichrome plating ※ Sold only as a set. ※ Please refrain from requesting unreasonable price reductions, as shipping and handling fees are included. ※ If you do not reply to our answers or are discourteous, we will consider it a "question dodger" (after 6 hours of no response), block your ID, and delete the relevant comment. ※ We will also delete the relevant comment if you decide not to purchase after consideration. #Countersunk #FlatHead #Tapping #CourseThread #Screw #Screw #Unichrome