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SDWS & SDWH Framing Screws

The SDWS Framing screw is suitable for replacing nails in many framing applications where a more secure and precise connection is wanted, especially where greater holding power and pullout resistance is needed, it can also be easily removed if required.

The screw has a SawTooth™ point that makes for fast installations without predrilling, and its specially designed head countersinks easily to provide a clean, flush finish. The T25 bit holds the 6-lobe recess tightly, reducing cam-out and head stripping.

Key Features


  • Large washer head with underhead box-nibs provides increased bearing in structural applications and provides clean and easy countersinking (11.18mm head dia.)
  • SawTooth™ point ensures fast starts, reduces installation torque and eliminates the need for predrilling in most applications
  • The 6-lobe drive provides positive bit engagement resulting in easier installations and longer bit life


  • Bold thread design provides superior holding power
  • SawTooth™ point ensures fast starts, reduces installation torque
  • Screws may be installed without pre-drilling in most applications
  • Underhead nibs offer greater installer  control when seating the head
  • Hex Head Drive for easier installation
Scope of Use


  • Multipurpose timber-to-timber connections, including timber framing, indoor/outdoor projects
  • Beam Construction (laminating timber members)
  • Framing Connections
  • Joist or Rafter Connections
  • Purlin to Rafter/Truss Connections
  • Timber Battens 
  • Fence Rails and Capping


  • Piles
  • Decks
  • Boardwalks
  • Anywhere you need a tough exterior structural fastener


  • Ledger boards
  • Stud-to-stud
  • Bottom plate to floor/joist
Limitations on Use
  • Refer to the Technial Data Sheet
Statement of Building Code Compliance
  • SDWS and SDWH Framing Screws are compliant with NZS 3604:2011
Technical Data Sheet - SDWS & SDWH Framing Screws
Technical Data Sheet - SDWS16 Roof Batten and Purlin Fastening
Florida Department of Business & Professional Regulation


IAPMO UES Evaluation Report

ER 0192

Full Catalogue: Timber Connectors NZS3604


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