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ASSY 3.0 SK steel zinc plated yellow PT AW
ASSY 3.0 SK
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Hardened steel, zinc plated, yellow coated, partial thread, large washer head, AW drive, counter thread
Large washer head
AW drive – more power
End mill – the "auxiliary motor" for lower force
Asymmetric coarse thread – faster speed
Mating thread – less tendency of the wood to split, very few blow-outs
Do not use the screw in applications exposed directly to the elements, in humid rooms or in atmospheres containing chlorine gas. For applications outdoors and in rooms which are briefly or constantly subjected to high humidity, please use the stainless steel ASSY 3.0 SK A2 screw, prefix number 0181.
ASSY 3.0 chipboard screws are optimised for use in wooden materials. When used in plastic anchors, a reduction of the load-bearing capacity is possible. Therefore, we recommend only using screws without optimised thread tips (drill bit, mating thread, ring thread, serrated edge, self-clearing groove, etc.) in plastic dowels, e.g. Würth ASSY D, prefix 0151 (countersunk head) and prefix 0153 (pan head). When using these screws, please follow ETA-11/0190 specifications.
Hardwood must be pre-drilled in accordance with ETA-11/0190.
Available work documents:
Timber dimensioning software, load tables and detailed processing instructions can be found on the service page www.wuerth.de/assy.
Catalogue page as PDF 1
CAD Data (available after login)
Screw-in angle 0° to 90°. For coniferous wood or wood-based materials made from softwood, make the fitting without a bradawl. To reduce the edge distances make a predrilled hole according to the core diameter. When screwing into hardwood, drill according to ETA-11/0190.
Nominal diameter (d)
Thread length (lg)
Round washer head
Head diameter (dh)
Head height (k)
Wood screw thread
End milling cutter
Shape of tip
Tip with counter thread
Angle of the tip
Zinc plated yellow
Max. screw-in angle
Min. screw-in angle
Suitable for use in the following materials
Board ply wood (BSP)
Area of application
On rafter insulation
Select RAL-colour code
!! NOTE: On-screen visualisation of the colour differs from real colour shade!!