Use and selection
This chipboard-screw type combines a countersunk head with a knurled section on the shank. Identify the board and the supporting material separately, then show where the head and shank sections will sit in the assembled joint. Use the catalogue size table for diameter and length, and add the required knurl position and length to the drawing.
Catalogue size reference
| Nominal diameter | Length range / mm |
|---|---|
| M3.5 | 16-50 |
| M3.9 | 16-75 |
| M4.2 | 16-75 |
| M4.8 | 16-135 |
| M5.5 | 16-165 |
| M6.3 | 16-250 |
Length ranges are shown in millimetres. Confirm the exact dimensions, finish and availability when enquiring.
Compare the configuration
Countersunk Head Type 17 Chipboard Screw names a Type 17 point as its distinguishing feature. Multi-purpose Screw lists both a knurled section and additional point and thread details. Use a drawing to compare these features when the shank configuration matters.
For your enquiry
- What are the board and support materials and thicknesses?
- Where should the knurled section and head sit in the assembled joint?
- What exact dimensions, drive and finish are required?
