Raised countersunk tapping screw, C shape with Z recessed head DIN 7983, steel, zinc-plated, blue passivated (A2K), shape C, with Z cross recess.
DIN 7983 steel zinc plated Z shape C with tip
SCR-RSDCS-DIN7983-C-Z2-(A2K)-4,2X25
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- Tapping screws belong to the thread-moulding screw family. These screws form their own counter thread in a prefabricated core hole when screwed in
- Guidelines for selecting the correct core hole diameter can be found in DIN 7975
- Shape C = with tip
- Shape F = no tip
- Shape R = rounded tip
Datasheets(X)
CAD data (available after login)
 | |
Standards | DIN 7983 |
Material | Steel |
Surface | Zinc plated |
Form | C |
Head type | Raised countersunk head |
Drive type | Z |
Internal drive | Z2 |
Nominal diameter (d1) | 4.2 mm |
Head diameter (dk) | 8.1 mm |
Length (l1) | 25 mm |
Head height (k1) | 2.5 mm |
Head details | 0 - not applicable |
Thread type | Self-tapping screw thread |
Thread design | Full thread |
Thread form | 0 - not applicable |
RoHS-compliant | Yes |
Declaration of performance (EU-CPR) | No |
| 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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