Countersunk tapping screw, shape C with AW drive WN 112-compliant, steel, zinc-plated, blue passivated (A2K), shape C, with tip
WN 112 steel zinc plated counters. head AW shape C
SCR-CS-WN112-C-AW20-(A2K)-3,9X19
Art.-no.
011253919
EAN 4045727135211
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AW drive system:
- Enhanced torque transmission
- Longer life
- Optimum centring
- Better mounting output thanks to fatigue-free screwing in; the required contact pressure for transmission of the torques is considerably lower
- Largest possible contact surface of bit in screw drive
- Even force distribution prevents damage to the surface-protection coating and therefore ensures better resistance to corrosion
Product information
Datasheets(X)
CAD data (available after login)
 | |
Material | Steel |
Surface | Zinc plated |
RoHS-compliant | Yes |
Form | C |
Nominal diameter (d1) | 3.9 mm |
Length (l1) | 19 mm |
Head diameter (dk) | 7.5 mm |
Head height (k1) | 2.8 mm |
Internal drive | AW20 |
Drive type | AW |
Head type | Countersunk head 80 degree |
Thread type | Self-tapping screw thread |
Thread design | Full thread |
Declaration of performance (EU-CPR) | No |
Shape of tip | Tip |
| 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 |