Drilling screw, hexagon head with sealing washer piasta®
Slf-tpng fcd cnstrctn screw, piasta-with slng wshr
SCR-DBIT-WSH22-WS3/8-(RUS)-6,3X50
ZEBRA PIASTA
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The sealing washer consists of an A2 stainless steel metal back with vulcanised seal made of high-quality EPDM
Reduction of the assembly time using the drill bit tip by min. 50%:
- Drilling without centrepunching
- Thread moulding
- Securing
All in one operation
Suitable for component combinations tI/tII according to approval ETA-10/0184
- Steel/steel - for ∅ 4.2 mm-∅6.3 mm
In addition, according to ETA-13/0210 sandwich attachment for ∅ 6.3 mm from a length of ≥ 50 mm
 | |
Material | Bimetal |
Surface | Flake zinc |
Material of sealing washer | Stainless steel A2 |
Surface of the sealing washer | Plain |
Material of gasket | Ethylene propylene diene terpolymer rubber |
RoHS-compliant | Yes |
Head type | Hexagon head with collar |
Drive type | Hexagon |
Thread type | Self-tapping screw thread |
Shape of tip | Drilling tip |
Underground | Steel, Aluminum |
Nominal diameter (d1) | 6.3 mm |
Length (l1) | 50 mm |
Outside diameter of the sealing washer (d2) | 22 mm |
Washer thickness (h1) | 4 mm |
Head height (k1) | 6.8 mm |
Drill tip length (lp) | 7.6 mm |
Screw-thread length with drill tip | 35.0 mm |
External drive (s1) | WS3/8 |
Max. material thickness to be drilled through (metal) | 6.0 mm |
For max. substructure thickness | 5.0 mm |
Min./max. attachment thickness | 11.5-27.0 mm |
Approval | ETA-10/0184 |
Min./max. recommended installation speed (idling) | 1200-1800 rpm |
| Nominal diameter | Head height (k1) | Outside drive (s1) | Drill tip length (lp) | Drillable material thickness max. | For substructure thickness max. | Recommended processing speed |
| 4.2 mm | 4 mm | WAF7 | 4.2 mm | 3 mm | 1.5 mm | 1700–2500 rpm |
| 4.8 mm | 5.4 mm | WAF8 | 5.6 mm | 4.4 mm | 3 mm | 1700–2500 rpm |
| 5.5 mm | 5.4 mm | WAF8 | 6.9 mm | 5.25 mm | 4 mm | 1200–1800 rpm |
| 6.3 mm | 6.8 mm | WAF3/8 | 7.6 mm | 6 mm | 5 mm | 1200–1800 rpm |
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