Self-drilling screw

A self-drilling screw is a type of fastener most often used for fastening metal structures.

These fasteners are also suitable for working with wood and plastic. The main difference is that their tip is not sharp but shaped like a mini drill bit. When driven in, the fastener does not damage the surface but smoothly penetrates it, which speeds up installation.

The length and diameter of self-drilling screws can vary. The fasteners also differ in head type: common variants have slots for a screwdriver or are shaped like a hexagon nut. The latter are often used in roofing and facade work.

How to use

Self-drilling screws often do not require a pre-drilled hole: it is enough to drive the fastener in with a screwdriver or power driver. This works if the surface is not too thick — otherwise the screw will not go in.

FLOK offers various types of screws with a mini-drill tip.