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ASSY® Isotop Timber screw
ASSY<SUP>®</SUP> Isotop Timber screw - 1
ASSY<SUP>®</SUP> Isotop Timber screw - 2

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

ASSY® Isotop Timber screw

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

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Steel, blue zinc-plated, 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



Tip with counter thread:
•Reduces the tendency of the wood to split
•Reduction of the screw-in torque


AW drive:


  • Optimum centring

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


Combination/replacement products:


  • ASSY 3.0 SK

  • ASSY plus FT
Notice

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



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

ETA–11/0190

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