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ASSY® Isotop Wood construction screw
ASSY<SUP>®</SUP> Isotop Wood construction screw - 1
ASSY<SUP>®</SUP> Isotop Wood construction screw - 2
ASSY<SUP>®</SUP> Isotop Wood construction screw - 3
ASSY<SUP>®</SUP> Isotop Wood construction screw - 4

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

ASSY® Isotop Wood construction screw

Double thread screw ideal for securing roof insulation and façade mounting using soft or pressure-resistant insulating materials

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Available in 4 versions

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Availability in a Würth branch office
Exclusively for trade customers

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Variants

Exclusively for trade customers

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Prices for customers after login

Steel, yellow galvanised, double thread, cylinder head, AW drive



Head:


Small cylinder head — ideal for sinking into wood



Thread:


A coarse, single-flight asymmetrical thread reduces the screw-in time by 30%



Plastic non-friction coating:


Enables easy screw-in due to sharp threads with glide-promoting coating



AW drive:


  • Optimum centring

  • Largest possible contact surface of the bits in the screw drive, thus no ejection forces


Combination/replacement products:


  • ASSY 3.0 SK

  • ASSY plus VG
Notice

ASSY Isotop is screwed into the rafters, for example, through the counter lathing and insulation without pre-drilling. With very dry wood (e.g. old building renovation) we recommend pre-drilling the counter lathing 8 mm.



You can use the Würth timber dimensioning software for an individualised static recommendation. Use this formula to easily calculate the screw length (specified in mm).



Additional product documentation:


  • Würth timber dimensioning software, (available online or as a download for offline work)

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

  • Data sheets for over-rafter insulation