Pan Cross Recessed, Din 7504, Steel zinc plated CR3

These pan cross recessed self drilling screws are manufactured in steel with a zinc plate finish.

Self Drilling Screws feature a built-in drill bit at the tip of the screw. These components are designed to drill their own hole into the object, saving a lot of time and effort in applications where large numbers of fasteners are to be installed.

As the screw is driven into the surface, the point cuts away material creating a hole for the screw to follow. A thread is then cut into the hole walls by the fastener, pulling the objects to be joined together.

Some confusion arises from the fact that Self Drillers are, technically, both Self Drilling and Self Tapping, as they first create an unthreaded hole, which is immediately tapped by the thread of the screw.