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ASSY® 3.0 A2 Chipboard screw
ASSY<SUP>®</SUP> 3.0 A2 Chipboard screw - 1
ASSY<SUP>®</SUP> 3.0 A2 Chipboard screw - 2
ASSY<SUP>®</SUP> 3.0 A2 Chipboard screw - 3
ASSY<SUP>®</SUP> 3.0 A2 Chipboard screw - 4

For detailed information, other images and documents, please select individual articles from the following table.

ASSY® 3.0 A2 Chipboard screw

Universal for fixing fences, balconies, walkways, play equipment in permanently exposed outdoor environments.

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A2 stainless steel, partial thread, countersunk head, AW drive



Joins wood instead of splitting it



Asymmetrical single-start thread — greater speed, greater traction


  • Low screw-in torque

  • High over-turning force

  • Faster screwing than conventional particle board screws


AW drive – more power


  • Optimal force transmission

  • Excellent fit

  • Rapid finding

  • Screw settles securely

  • Virtually no unscrewing of bit

  • No wobbling

  • No damage to surface coating of screw

  • Only 5 bit sizes for diameters 3.0 to 12.0 mm


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


  • Low splitting forces, in particular when screwing close to edges

  • Reduction of screw-in torque

  • Punch effect of ring thread largely prevents blow-outs


Material:


Corrosion-resistant, austenitic stainless steel (1.4301; 1.4567)

Notice

Pre-drilling to core diameter on solid hard woods



ASSY® 3.0 A2 have limited resistance to acid and are unsuitable for chloride gas-containing atmospheres.



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. If used in plastic anchors, this may cause a reduction in the load-bearing capacity. Therefore, we recommend only using screws without optimised thread tips (drill tip, mating thread, ring thread, serrated edge, self-clearing groove etc.) in plastic anchors, e.g. ASSY D, prefix number 0151 (countersunk head) and prefix 0153 (pan head).



The range of applications of the various stainless steels is detailed in the following table issued by the ISER (German Information Office for Rustproof Stainless Steel, Non-Rusting Steels for Various Environmental Conditions, www.edelstahl-rostfrei.de, Information Sheet 828). Rustproof stainless steels (e.g. material no. 1.4016) are recommended in terms of atmospheric conditions only for use in a rural environment, and in this respect only subject to significant restrictions. We therefore recommend using only austenitic stainless steels for outdoor applications, taking the environmental conditions into account. Stainless steel A4 is especially suitable for use in an industrial atmosphere and for use near the sea.



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.