• Used to minimise the risk of water ingress around a screw hole.
  • Available in Bright Zinc Plated carbon steel or Stainless steel
  • Designed to work with a 5-6mm screw
  • 16 or 19mm outside diameter, 1mm thick steel top with 2mm EDPM underneath which compresses to create the seal once the screw is tightened.
  • Most commonly used with roofing or cladding screws