The difference between the drilling screw and the ordinary
self-tapping screw is that the ordinary self-tapping screw needs to
go through two processes of drilling and tapping when it is
connected, and the drilling screw combines the drilling and tapping
two processes when it is connected.It first uses the drill in front
of the screw to drill, and then uses the screw to tap (including
fastening connections) to save construction time and improve
construction efficiency.
It is mainly used for the connection and fixing of some thin plate
parts, such as the connection of color steel plate and colorsteel
plate, and the connection of color steel plate and die strip and
wall beam.
