System WFD / WFO / WFR

Partially threaded timber construction screws for timber to timber and timber to steel connections

The self-tapping, partially-threaded WF fasteners are suitable for many timber jobs, such as timber-to-timber junctions, connecting timber or steel components to multi-layer timberwork or solid pine.

WFD-T Carbon Steel: Timber to timber connection and steel to timber connection

  • Combined internal and external drives T30/H12 - T40/H15
  • Internal drive for countersinking
  • No danger of skidding with the external hexagon drive
  • Washers available to increase pull-through capacity of the head

WFO-T Carbon Steel: Timber to timber connection

  • T40 - T50 internal drives
  • Rapid insertion due to coarse thread
  • Flat head increases pull-through capacity of the head

WFR-T Carbon steel: Timber to timber connection

  • T20 - T30 internal drive
  • 50% faster insertion due to the double-start thread
  • Countersunk head
  • Bits with minimal pressure
  • Milling recess prevents splitting of the wood