pias® wing-type drilling screw, countersunk milling head with AW drive
Wing-pias steel zinc plated yellow cs head AW
SCR-DBIT-WNG-CS-CUTHD-AW25-(A3L)-4,8X50
ZEBRA PIAS
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Steel, yellow galvanized
With self-tapping thread
Countersunk milling head for use with hard and soft woods
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
The recommendation for the maximum wood thickness lH was calculated with reference to the maximum attachment thickness lU of the substructure.
Wing-pias® must be appropriately tested for usability for each application case. Only install using equipment with depth stop and claw coupling
- Force feeding of the screw is prevented by the wings drilling out the wood
- The core hole is drilled into the substructure. The wings break off upon contact with the metal
- The first few turns of the screw cut the thread, the remainder of the screw then screws into the thread
 | |
Nominal diameter (d) | 4.8 mm |
Length (l) | 50 mm |
Head diameter (dk) | 9.5 mm |
Head height (k1) | 4.0 mm |
Drill tip length (lp) | 10 mm |
Other standard | WN 219 |
Material | Steel |
Surface | Zinc plated yellow |
Head type | Countersunk milling head |
Internal drive | AW25 |
Thread type | Self-tapping screw thread |
Min. recommended substructure thickness | 1.8 mm |
Max. material thickness to be drilled through (metal) (lU) | 4 mm |
Max. material thickness for wood (lH) | 37 mm |
Min./max. recommended installation speed (idling) | 1200-1800 rpm |
Approval | DIBt Z-14.4-634 |
RoHS-compliant | No |
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