ASSY 3.0 steel zinc plated FT countersunk head AW
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Zinc-plated steel, blue passivated, full thread, countersunk head, AW drive
Connects the wood instead of splitting it
Milling pockets – countersink anywhere!
Asymmetric thread – faster speed
AW drive – more power
Mating thread – less tendency of the wood to split, very few blow-outs
The screws are not suitable for outdoor use and for rooms subject to short-term or continuous high moisture levels! Please use ASSY® 3.0 A2 stainless steel screws in these cases.
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 tip, mating thread, ring thread, serrated edge, self-clearing groove etc.) in plastic dowels, e.g. Würth ASSY D, prefix number 0151 (countersunk head) and prefix number 0153 (pan head).
With steel screw connections, a pin-point countersunk drill hole must be made in steel parts.
Available work documents:
Timber dimensioning software, load tables and detailed processing instructions can be found on the service page: www.wuerth.de/assy.
Wood-wood and steel-wood connections, furniture construction, shopfitting, interior fittings and interior construction.
Screw-in angle 0° to 90°. For coniferous wood or wood-based materials made from softwood, the screw connection is made without pre-drilling. To reduce the edge distances, a pre-drilled hole can be made according to the core diameter. When screwing into hardwood, pre-drill according to ETA-11/0190.
Nominal diameter (d)
Head diameter (dh)
Head height (k)
Wood screw thread
Thread length (lg)
Shape of tip
Tip with counter thread
Angle of the tip
Min./max. screw-in angle
Suitable for use in the following materials
Board ply wood (BSP)
Area of application
Screw requiring approval