Spun Galvanised Coach Screws with a Hexagon Head to Din standard 571 For timber construction and joinery.
Galvanised or Stainless steel are the best option for external applications.
These hexagon headed wood screws are also known as lag screws and are available in extra long lengths up to 300mm and even 400mm. For marine or coastal enviroments select the A4 316 stainless steel. Please select the image to go to the relevant type of coach screw.