Sheet Metal Screws Pilot Hole Sizes

 

Self-tapping screws require a pre-drilled hole or core hole. They cut the thread themselves when screwing in and save the use of a tap. In principle, you always have to pre-drill for sheet metal screws.

Sheet metal screws are used to join thin sheets or plastic plates, e.g. for facade cladding, load-bearing structures and profiled sheets or for cladding parts in the automotive sector. A screw connection of this type has the advantage that it can be loosened again at any time and is very cost-effective.

 

Sheet Metal Screws Pilot Hole Sizes Chart

Screw Diameter Sheet Thickness    Core hole or borehole for
Steel and VA sheets
Core hole or borehole for
Aluminium sheets
3,20 mm 0,00 - 0,56 mm 2,60 mm x
0,56 - 0,75 mm 2,70 mm x
0,75 - 0,88 mm 2,70 mm 2,60 mm
0,88 - 1,25 mm 2,80 mm 2,60 mm
1,25 - 1,38 mm 2,80 mm 2,60 mm
1,38 - 1,75 mm 2,90 mm 2,70 mm
1,75 - 2,50 mm 3,00 mm 2,80 mm
2,50 - 3,00 mm 3,20 mm 3,00 mm
3,00 - 6,00 mm x 3,00 mm
3,90 mm 0,00 - 0,56 mm 2,95 mm x
0,56 - 0,63 mm 2,95 mm x
0,63 - 0,88 mm 2,95 mm 2,90 mm
0,88 - 1,13 mm 2,95 mm 2,90 mm
1,13 - 1,25 mm 3,00 mm 2,90 mm
1,25 - 1,38 mm 3,00 mm 2,90 mm
1,38 - 1,75 mm 3,20 mm 3,00 mm
1,75 - 2,00 mm 3,20 mm 3,00 mm
2,00 - 2,50 mm 3,50 mm 3,50 mm
2,50 - 3,00 mm 3,60 mm 3,50 mm
4,20 mm 0,50 - 0,63 mm 3,20 mm x
0,63 - 0,88 mm 3,20 mm 2,95 mm
0,88 - 1,13 mm 3,20 mm 3,00 mm
1,13 - 1,38 mm 3,20 mm 3,20 mm
1,38 - 2,50 mm 3,50 mm 3,50 mm
2,50 - 3,00 mm 3,80 mm 3,70 mm
3,00 - 3,50 mm 3,90 mm 3,80 mm
3,50 - 10 mm x 3,90 mm
4,80 mm 0,50 - 0,75 mm 3,70 mm x
0,75 - 1,13 mm 3,70 mm 3,70 mm
1,13 - 1,38 mm 3,90 mm 3,70 mm
1,38 - 1,75 mm 3,90 mm 3,70 mm
1,75 - 2,50 mm 4,00 mm 3,80 mm
2,50 - 3,00 mm 4,10 mm 3,80 mm
3,00 - 3,50 mm 4,30 mm 3,90 mm
3,50 - 4,00 mm 4,40 mm 3,90 mm
4,00 - 4,75 mm 4,40 mm 4,00 mm
4,75 - 10 mm x 4,20 mm
5,50 mm bis 1,13 mm 4,20 mm x
1,13 - 1,38 mm 4,30 mm 410 mm
1,38 - 1,50 mm 4,30 mm 4,10 mm
1,50 - 1,75 mm 4,50 mm 4,20 mm
1,75 - 2,25 mm 4,60 mm 4,40 mm
2,25 - 3,00 mm 4,70 mm 4,60 mm
3,00 - 3,50 mm 5,00 mm 4,60 mm
3,50 - 4,00 mm 5,00 mm 4,80 mm
4,00 - 4,75 mm 5,10 mm 4,80 mm
4,75 - 10 mm x 4,90 mm
6,30 mm bis 1,38 mm 4,90 mm x
1,38 - 1,75 mm 5,00 mm 5,00 mm
1,75 - 2,00 mm  5,20 mm 5,00 mm
2,00 - 3,00 mm  5,30 mm 5,20 mm
3,00 - 4,00 mm  5,80 mm 5,30 mm
4,00 - 4,75 mm  5,90 mm 5,40 mm
4,75 - 5,00 mm  x 5,60 mm
5,00 - 10 mm  x 5,80 mm

* All information without guarantee.