Window construction screw, self-drilling, raised countersunk head Febos® Plus with extended drill tip
FEBOSplus long BSP ALZ coated stl raised c/s hd AW
SCR-DBIT-LONG-SORT-AW20-(ALZ)-3,9X25
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- Self-tapping screw thread
- with extended drill tip for higher reinforcement strengths
- Head diameter 7.0 mm
- Self-drilling window construction screw for use in plastic window construction
- For connecting plastic profiles with the metal reinforcement (up to 3.5 mm) and for securing fittings on profiles with metal stiffening (up to 3.5 mm)
AW drive
- Optimum transmission of forces
- No ejection forces
- Good centring
- Fast location
ALZ coating
In the salt-spray mist test according to DIN EN ISO 9227-NSS, 500 hours without red rust on base metal corrosion
Cr(VI)-free corrosion protection layer.
Roller-sorted
Sorted according to head diameter (Foreign parts > or < such as head diameter will be sorted out)
The machine setting must be matched to the screw.
Factors to consider are:
- Plastic material and geometry
- Steel and steel grade
- Axial pressure
- Machine rotation speed
Material | Steel |
Surface | Zinc plated |
RoHS-compliant | Yes |
Thread type x nominal diameter (d1) | ST3.9 |
Length (l1) | 25 mm |
Head diameter (dk) | 7 mm |
Head height (k1) | 3 mm |
Drill tip length (lp) | 7 mm |
Drill tip diameter (dp) | 3.25 mm |
Internal drive | AW20 |
Head type | Raised countersunk head |
Shape of tip | Drilling tip |
Thread design | Full thread |
Thread type | Self-tapping screw thread |
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