In this video, we cover various types of self-drilling screws:

Hexagon head Tek self-drilling screws (light and heavy)
Hex head Tek light self-drilling screws are used when fixing into thinner grades of steel and they have a more coarse thread than the heavy option. Hex head Tek heavy self-drilling screws are used when fixing into thicker grades of steel and they have a finer thread than the light option.

Hexagon head sheet to timber self-drilling screws:
Hexagon head sheet to timber self-drilling screws are used for fastening thin sheet steel (max 0.8mm) to timber. They cannot be used the other way around i.e. fixing timber to steel. They are also suitable for any solely timber applications.

Hexagon Head stitching self-drilling screws:
Hexagon headed self-drilling stitching screws feature a reduced diameter drilling point. They are commonly used for stitching thin sheet metal together.

Countersunk wing-tip self-drilling screws (light and heavy:)
Wing-tip countersunk Phillips self drilling screws are available in light or heavy section and are designed to fix wood to metal. Please note that they will not work if the materials are round the other way, i.e. fixing metal to wood.

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Chapters

00:00 Intro
00:10 Self-drilling screws
00:47 A guide to drilling
00:53 Caution
01:03 Hexagon head sheet-to-timber self-drilling screws
01:33 Hexagon head stitching self-dilling screws
01:49 Countersunk wing-tip self-drilling screws
02:25 Outro

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