DIN 7985 dimensions — Cross Recessed Pan Head Screw
1990-08 edition, withdrawn as a document · 10 sizes, M1.6 – M10 · the part is still made and ordered to it see the cross-reference →
✓We supply to DIN 7985. Name it on your order — your drawing does not need changing.
DIN 7985 dimensions
| Thread size | PThread Pitch (mm) | dkHead Diameter (mm) | kNominal Head Height (mm) | bThread Length (mm) | Clearance holefine / medium / coarse (mm) | Tap drillcoarse pitch (mm) |
|---|---|---|---|---|---|---|
| M1.6 | 0.35 | 3.2 | 1.3 | 15 | 1.7 / 1.8 / 2 | 1.25 |
| M2 | 0.4 | 4 | 1.6 | 16 | 2.2 / 2.4 / 2.6 | 1.6 |
| M2.5 | 0.45 | 5 | 2 | 18 | 2.7 / 2.9 / 3.1 | 2.05 |
| M3 | 0.5 | 6 | 2.4 | 19 | 3.2 / 3.4 / 3.6 | 2.5 |
| M3.5 | 0.6 | 7 | 2.7 | 20 | 3.7 / 3.9 / 4.2 | 2.9 |
| M4 | 0.7 | 8 | 3.1 | 22 | 4.3 / 4.5 / 4.8 | 3.3 |
| M5 | 0.8 | 10 | 3.8 | 25 | 5.3 / 5.5 / 5.8 | 4.2 |
| M6 | 1 | 12 | 4.6 | 28 | 6.4 / 6.6 / 7 | 5 |
| M8 | 1.25 | 16 | 6 | 34 | 8.4 / 9 / 10 | 6.8 |
| M10 | 1.5 | 20 | 7.5 | 40 | 10.5 / 11 / 12 | 8.5 |
10 of 10 sizes shown. Clearance holes are fine / medium / coarse to ISO 273; tap drill is for the coarse pitch.
What we supply to DIN 7985
2 materials| Material | Property class | Finish |
|---|---|---|
| Carbon Steel | 4.8 · 8.8 | Zinc Plated · Nickel Plated · Phosphate · Blackened · Plain |
| Stainless Steel | A2-70 · A4-80 | Plain · Passivated |
Property classes
ISO 898-1 · ISO 3506-1| Class | Rm min. | Yield requirement | Elongation requirement | Hardness | Typical use |
|---|---|---|---|---|---|
| A2-70 | 700 MPa | Rp0.2 min. 450 MPa | 0,4d mm | - | Cold-worked austenitic stainless, typically 304 — outdoor, wet and food service away from chlorides. |
| A4-80 | 800 MPa | Rp0.2 min. 600 MPa | 0,3d mm | - | The strongest 316-type class; marine and chemical service where 70 does not carry the load. |
| 4.8 | 420 MPa | Rpf min. 340 MPa (not a test value) | Af min. 0.24 | 130 - 220 HV | Light-duty non-structural work; the low-cost class for large sizes carrying little load. |
| 8.8 (d <= M16) | 800 MPa | Rp0.2 min. 640 MPa | A min. 12 % | 250 - 320 HV | The general-purpose structural class — steel-to-steel joints, machinery, vehicle assembly. Assume this if no class is stated. |
| 8.8 (d > M16) | 830 MPa | Rp0.2 min. 660 MPa | A min. 12 % | 255 - 335 HV |
These values meet the requirements of ISO 3506-1 / ISO 898-1. We supply to these classes and issue the matching mill certificate and third-party test report with your order.
