Drilling screw, hexagon head with undercut and sealing washer piasta^®

Name: Drilling screw, hexagon head with undercut and sealing washer piasta ®
Brand: Würth
SKU: 0214955525

Self-tapping fcd. cnstrctn. screw, piasta-undercut
SCR-DBITR-WSH14-H-WS8-(RUS)-5,5X26
ZEBRA PIASTA

Art.-no. 0214955525

EAN 4045727291542

All versions

Specification

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 t_I/t_II 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.

Technical information


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)	5.5 mm
Length (l₁)	26 mm
Head diameter (d_k)	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 (l_p)	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