These screws are using a very advanced technique for their application and are very difficult to crack. Its strength can further be enhanced by changing the screw thread design of an ordinary chipboard screw and may act as a claw-cutting chipboard nail. Its appearance is generally black countersunk head, semi countersunk head, round head, etc. HELLARY offers you the wide specification of these screws like 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 6 mm, and most regularly as 4 mm, 5 mm, 6 mm for everyday application.
