Use and selection
A countersunk head, under-head serrations and a drill point identify this light-steel-building type. The connection drawing should show the head seat as well as the materials below it. If the position of the head surface matters, specify the head angle and seating dimensions together with the required screw size.
Catalogue size reference
| Nominal diameter | Length range / mm |
|---|---|
| M3.9 | 13-75 |
| M4.2 | 13-75 |
| M4.8 | 13-125 |
| M5.5 | 13-150 |
| M6.3 | 13-230 |
Length ranges are shown in millimetres. Confirm the exact dimensions, finish and availability when enquiring.
Compare the configuration
Countersunk Head Winged Self Drilling Screw additionally identifies wings. Flat Head Self Drilling Screw with Under-Head Serrations uses a flat-head description. Compare the head and point drawings alongside the catalogue diameter and length when selecting the configuration.
For your enquiry
- What materials and individual thicknesses form the connection?
- What head seat, head dimensions and final head position are required?
- Does the drawing call for wings, and what finish and drive are specified?
