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The ASSY 3.0 SKII with a smaller, flat, graduated washer head is designed for universal use in the timber construction/carpentry sector. For applications that require countersinking and effective consolidation.
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Hardened steel, blue passivated (A3K), graduated washer head, AW drive, end mill, partial thread, counter thread
Connects the wood instead of splitting it
Graduated washer head
AW drive – more power
End mill – the "auxiliary motor" for lower force
Asymmetric coarse thread – faster speed
Very precise positioning thanks to the 34° tip
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.
Hardwood must be pre-drilled in accordance with ETA-11/0190.
Use Würth timber construction software to measure the ASSY screws with a diameter of more than 5 mm.
ASSY 3.0 particle board 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 comply with ETA-11/0190 specifications.
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.
To increase the consolidation effect or penetration resistance, we recommend using in conjunction with precision washers for ASSY 3.0 SKII.
Select RAL-colour code
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