Use and selection
This light-steel-building type is distinguished by its large hex flange head and drill point. The flange size is a configuration detail to specify from the connection drawing, together with the hole, seating surface and space for the installation tool. Include the required flange diameter and head height alongside the diameter and length selected from the catalogue table.
Catalogue size reference
| Nominal diameter | Length range / mm |
|---|---|
| M4.8 | 16-135 |
| M5.5 | 16-165 |
| M6.3 | 16-230 |
Length ranges are shown in millimetres. Confirm the exact dimensions, finish and availability when enquiring.
Compare the configuration
Hex Flange Head Self Drilling Screw – Trailer Series is the trailer-series hex-flange reference. Countersunk Head Self Drilling Screw with Under-Head Serrations instead uses a countersunk serrated head. Compare the required head contact geometry before selecting between the light-steel-building types.
For your enquiry
- What flange diameter, head dimensions and tool clearance are required?
- What hole and seating details appear on the connection drawing?
- What steel layer thicknesses, screw size and finish should be checked?



