Zinc-plated steel, blue passivated, partial thread, countersunk milling pocket head, AW drive

Connects the wood instead of splitting it

Substrates:

Solid wood (coniferous wood, ash, beech, oak), laminated beams, cross laminated timber (CLT), timber veneer (coniferous wood or BauBuche), OSB and chipboard.

Milling pockets – countersink anywhere

• Suitable for wood and fittings
• Minimum damage to coated wood materials
• Less chips on the surface

End mill – the "auxiliary motor" for lower force

• Reduction of the screw-in and head countersinking torque, especially with long screws
• Protection of screw-in tools
• From diameter = 5 mm, L = 70 mm

Asymmetric thread – faster speed

• Low screw-in torque
• High over-turning force
• Faster screwing in than conventional particle board screws
• Double thread: 3.0–4.5 mm
• Coarse thread: 5.0-12.0 mm

AW drive — more power

• Optimum transmission of forces
• Excellent fit
• Fast location
• Screw locates securely
• Almost no unscrewing of the bit
• No wobbling
• No damage to surface coating of screw
• Only 5 bit sizes for the diameters 3.0 to 12.0 mm

Ring/mating thread — less tendency of the wood to split, very few blow-outs

• Minimal splitting forces, especially when screwing in at edges
• Reduction of the screw-in torque
• Blow-outs are avoided to a high degree thanks to the punching effect of the ring thread
• Ring thread: 3.0–4.5 mm
• Mating thread: 5.0-12.0 mm

Notice

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.

To attach metals to wood, machine a precise cutout in the metal tab.

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).

Available work documents:

Timber dimensioning software, load tables and detailed processing instructions can be found on the service page www.wuerth.de/assy.

ETA-11/0190

When using these screws, please follow ETA-11/0190 specifications.

Application areaScrewing of wood-wood or steel-wood connections in furniture construction, shopfitting, interior fittings, roofing and timber construction.

Instructions

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.