Round head tapping screw, shape C, H recessed head DIN 7981, steel, nickel-plated (E2J), round head, PH drive, shape C
DIN 7981 steel nickel-plated round head H shape C
SCR-PANHD-DIN7981-C-H2-(E2J)-3,9X25
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- Tapping screws are thread-forming screws. These screws form their own counter thread when screwed into a prefabricated core hole
- Reference values for selecting the correct core-hole diameter are included in DIN 7975
- Shape C = thread with tip
- Shape F = thread without tip
- Shape R = thread with a rounded tip
Datasheets(X)
 | |
Material | Steel |
Surface | Nickel plated |
Form | C |
Nominal diameter (d1) | 3.9 mm |
Length (l1) | 25 mm |
Head diameter (dk) | 7.5 mm |
Head height (k1) | 2.8 mm |
Internal drive | H2 |
DIN | 7981 |
Head type | Pan head |
Head details | 0 - not applicable |
Declaration of performance (EU-CPR) | No |
Standards | DIN 7981 |
Thread type | Self-tapping screw thread |
Thread design | Full thread |
Shape of tip | C |
| Thread size | St 2.2 | St 2.9 | St 3.5 | St 3.9 | St 4.2 | St 4.8 | St 5.5 | St 6.3 | St 8 | St 9.5 |
| Min. sheet thickness (mm) | 0,8 | 1,1 | 1,3 | 1,3 | 1,4 | 1,6 | 1,8 | 1,8 | 2,1 | 2,1 |
| Max. sheet thickness (mm) | 1,8 | 2,2 | 2,8 | 3 | 3,5 | 4 | 4,5 | 5 | 6,5 | 7,5 |
| Pre-drilling diameter (mm) | 1,2 | 2,1 | 2,6 | 2,8 | 3,0 | 3,5 | 4,1 | 4,7 | 6,1 | 7,7 |
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