80mm Heavy Drillscrew

Code: FD1HD80W19
£35.38 Incl. VAT

23 In Stock

Code: FD1HD80W19
Availability: 23 In Stock
£35.38 Incl. VAT

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  •  Bag of 100,  80mm Heavy Duty drillscrews / tek screws with 19mm bonded washer and 8mm hex head. 
  • Heavy duty drillscrews have a cutting point that will self drill through up to 12mm thick hot rolled steel supports without the need to pre-drill. 
  • 80mm Length with 19mm is commonly used to fix 40mm Core Thick Composite Panels in conjunction with a 19mm Colour Cap.
  • Complete with Expansion Gap for use with Composite Panels.
  • Ideal for fixing  Single Skin Box Profile directly to RSJ's or Angle Iron supports.
  • Also Available in 38mm (with 19mm washer for Single Skin Steel sheets, 29mm Washer for GRP sheets) 67mm, 105mm, 130mm, 155mm and 190mm lengths
  • We also stock screws for Going into Light Section Steel (cold rolled up to 3mm thick) and Timber.
  • Material - Galvanised
  • Length - 80mm
  • Head - 8mm Hex
  • Washer 19mm
  • Capability - Fixing into steel 3mm to 12mm thick (hot rolled)
  • Screw Diameter - 5.5mm
  • Weight - Up to 3kg (depending on length)


  • 8mm Galvanised head (Can fit a coloured cap to match colour of project)
  • Fixes into Hot Rolled Steel (3mm to 12mm such as RSJ’s)
  • Has expansion gap for use with insulated sheets and built up systems
  • Self Tapping – No need to pre-drill
 What is a Heavy Duty Drillscrew?
A Heavy Duty drillscrew is designed to fix Trapezoidal Box profiles or insulated box profiles into Hot Rolled Steels (Such as RSJ’s) which are 3mm-12mm Thick

What material are they made of?
These Screws are made of galvanised steel.

What are these used for?
This longer length is typically used with Insulated Panels or built up systems, see the product description for a sizing chart. The shorter lengths are used for single skin box profile or single skin GRP profile sheets.

Where are they fixed?
The fixing is designed to be installed into the valley (trough) of the profile.

Do I need anything else?

You will need an 8mm Magnetic Drill Socket to install these with, you may also wish to consider a coloured cap to push onto the screw to protect the head and match the colour of what you are fixing.