Use and selection
This drill-point type has a flat head with serrations beneath it. Include the head profile and seating surface in the connection drawing, together with the layers the point must pass through. The catalogue table gives diameter and length references; head thickness, serration dimensions and drilling capability require the specification for the selected configuration.
Catalogue size reference
| Nominal diameter | Length range / mm |
|---|---|
| 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
Flat Head Self Tapping Screw with Under-Head Serrations has similar flat serrated-head wording but is a pointed self-tapping type. Countersunk Head Self Drilling Screw with Under-Head Serrations is described as countersunk. Keep the point and head distinctions explicit when requesting a drawing or quotation.
For your enquiry
- Does the joint require a drill point, and what material stack must it pass through?
- What head thickness, seating and serration geometry are specified?
- What exact size, drive and finish are required?
