The fixing thread is a second thread immediately below the head of the SPAX.... Read More
SPAX DoubleLok or Fixing Threads
The fixing thread enables two pieces of wood to be securely and durably connected to each other. Particularly when laying wooden flooring indoors using SPAX flooring screws, or when building a wooden deck outdoors using stainless steel SPAX decking screws, the fixing thread holds the cover board permanently on the substructure. This minimises creaking from the floor structure.
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