Drilling screw, hexagon head with undercut and sealing washer piasta®
Self-tapping fcd. cnstrctn. screw, piasta-undercut
SCR-DBITR-WSH14-H-WS8-(RUS)-5,5X26
ZEBRA PIASTA
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A2 stainless steel with drill bit tip and moulded thread made of hardened steel. Screwing on of steel and aluminium profiles in steel and aluminium without over-turning ≤ 2 mm
The sealing washer consists of an A2 stainless steel metal back with vulcanised seal made of high-quality EPDM
Suitable for component combinations tI/tII according to approval ETA-10/0184
- Steel/steel for ∅ 4.8 mm and ∅ 5.5 mm
- Aluminium/steel for ∅ 4.8 mm and ∅ 5.5 mm
- Aluminium/aluminium for ∅ 4.8 mm and ∅ 5.5 mm
- and additionally for ∅ 5.5 mm steel/2 x steel (cassette attachment)
The thread-free part (undercut) below the screw head prevents the screw from overturning and thus ensures that splice plate screw connections in thin metal profiles are safe from working loose.
Datasheets(X)
CAD data (available after login)
 | |
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 |
Nominal diameter (d1) | 5.5 mm |
Length (l1) | 26 mm |
Head diameter (dk) | 10.9 mm |
Outside diameter of the sealing washer (d2) | 14 mm |
Washer thickness (h1) | 4 mm |
Head height (k1) | 5 mm |
Drill tip length (lp) | 5.5 mm |
Screw-thread length with drill tip | 20 mm |
External drive (s1) | WS8 |
Max. material thickness to be drilled through (metal) | 4.5 mm |
For max. substructure thickness | 2 mm |
Min./max. attachment thickness | 0-5.0 mm |
Approval | ETA-10/0184 |
Min./max. recommended installation speed (idling) | 1200-1800 rpm |
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