Carbon Steel Hex Head Composite Panel to Heavy Section 

For fixing insulation panels to hot rolled purlins (4.0mm – 12.5mm steel).


      

These items are UKCA and CE approved.

Part Number Length (MM) Diameter (MM) Drill Point Min Panel Thickness (MM) Max Panel Thickness (MM)
HT80.5 80 5.5 No. 5 30 45
HT102.5 102 5.5 No. 5 50 65
HT130.5 130 5.5 No. 5 45 90
HT155.5 155 5.5 No. 5 70 115
HT190.5 190 5.5 No. 5 105 150
HT210.5 210 5.5 No. 5 130 170
HT250.5 250 5.5 No. 5 170 210

Heavy section screws fasten sandwich panels to hot rolled purlins (4.0mm – 12.5mm steel).

  • Carbon steel is the most popular material for fixings as it is strong, weather resistant and affordable.
  • Hex heads are standard across the industry, and require a 5/16″ socket, which we also supply.
  • The fine thread provides many points of engagement with the purlin, maximising pull-out values.
  • The high thread has a wider diameter than the lower thread, so that the outer sheet is well-engaged.
  • The no. 5 drill point is designed to ensure a clean cut through up to 12.5mm steel, without burn-out.

For maximum fastener performance, we recommend using a tek screw driver which does not exceed 2500RPM.

 

 

 

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