BUILD THE (IM)POSSIBLE: take on the challenge!

AC233 and AC257 ICC-ES Evaluation report for self-tapping screws from Rothoblaas.
Some highlights:

  • The first line of modern structural screws with US design values also for withdrawal in the end grain, and any other angle from 0 – 90° to the fiber
  • A full range of partially and fully threaded screws, timber to timber and timber to metal, covering 10 screw categories
  • Design values for specific gravity from 0.35 to 0.55
  • EVO coated screws tested for use in pressure treated lumber