... 200mm .Threads/ Scrows Most scrows are available.such as :Self tapping threads "A","AB", Threads for chipboard screw,wood screw, ... "threads for Machine threads.Head typesHexagon head,Mushroom head,Pan head,Countersunk head,Bugle head,Oval head,Hex flange head,Round head,Ball head,Button head...Socket typesPhillip type,Pozi ... contact me if you have any query ! Torx Socket Pan Head Self Tapping Screw