Klasse C-Board Sheathing Board Fasteners

Klasse wing tipped tek screws are specifically designed for fixing to metal substrates from 1.2mm to 3.5mm thick. No need to pre-drill thanks to the sharp drill point, however for very hard substrates a small pilot hole can be used to speed up insertion speed. These tek screws have an Evoshield® exterior coating which is tested to withstand a minimum 500 hours of salt spray.

Standard Fixing: KWT4.8-38-3  |  4.8 x 38mm 


  • For mechanically fixing to light metal purlins and rails.

Key Features

  • Self-drilling point to drill through up to 3.5mm steel
  • Coarse self-tapping thread for extreme grip & excellent pull out
  • Evoshield® 500-hour salt spray tested exterior plating
  • Manufactured from AISI C1022 grade steel
  • PH2 phillips drive

Please contact us for further technical information on our fastener range.

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