DIN7982 countersunk head self tapping screw M2.2*6.5  

DIN7982 countersunk head self tapping screw M2.9*6.5 is a kind of threaded fastener that can self tap and drill the matched female thread in the pre drilling of metal or non-metallic materials. Self tapping screw is used for non-metallic or soft metal without bottom hole and tapping; Self tapping screws are pointed, so that they can "self tap". Countersunk head screw can also be called flat head screw, countersunk head screw, semi countersunk head screw and semi countersunk head screw. Generally, countersunk head screws are cross recessed, which is above the national standard specifications. The top diameter of countersunk head screws is large and can be circular or hexagonal, so that tools such as screwdriver or wrench can rotate the screws. The protruding top also prevents the screw from drilling too deep and passing through the material, and increases the pressure of the screw on the material. Countersunk screws can usually be removed or re embedded at will w…