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Wing-tip drilling screw with countersunk milling head with pias AW recess
With DIBt National technical approval for diameters 3.9 mm, 4.2 mm and 4.8 mm
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Variants
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- Zinc plated steel
- With self-tapping screw thread
- Countersunk milling head for use with compact and hard woods and soft and light woods
- AW recess system for better torque transmission, a longer service life and optimal centring
- The recommended maximum wood thickness lH was calculated with reference to the maximum fixture thickness lU of the substructure!
- Wing-tip pias® screws must be appropriately tested for usability for each application. Only install using application tools with a depth stop and claw coupling
- Self-drilling screws must be installed with a suitable drill/driver (e.g. cordless drill/driver with depth stop)
- The use of impact drivers is not permitted
- Self-drilling screws must be screwed in perpendicular to the surface of the component
For 3.9/4.2/4.8 mm ∅
General construction permit Z-14.4-634
For use with wood and gypsum material boards and cement-bound mineral construction material boards with thin-walled steel profiles.
Zinc plated self-drilling screws must only be used in locations where permanently damp conditions are not expected - condensation is not considered a permanently damp condition (corrosivity category ≤ C2 in accordance with DIN EN ISO 12944-2). For fasteners with technical approval, the approval, and in particular Part 2 "Special regulations", must always be observed.
- 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
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