Carbon Steel Low Profile Composite Panel to Heavy Section 

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


Part Number Length (MM) Diameter (MM) Drill Point Min Panel Thickness (MM) Max Panel Thickness (MM)
HT130.5LP 130 5.5 No. 5 50 100
HT200.5LP 200 5.5 No. 5 120 160

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.
  • Low profile heads provide a seamless finish with the material and are often powder coated to suit the panel. Low profile heads require T-25 bits.
  • 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-enagaged.
  • 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.




HT130.5LP HT200.5LP
A (mm) 14.50 14.50
B (mm) 130.00 200.00
C (mm) 75.00 75.00
D (mm) 5.50 5.50
E (mm) 15.00 15.00
F (mm) 5.00 5.00

Click to download Technical Data Sheet

HT130.5LP   ⭳ HT200.5LP   ⭳
Pull Out (kN) - 4.00mm S275 Steel 10.00 10.00
Pull Out (kN) - 6.00mm S275 Steel 12.68 12.68
Pull Out (kN) - 8.00mm S275 Steel 12.68 12.68
Pull Out (kN) - 10.00mm S275 Steel 12.68 12.68
Pull Out (kN) - 12.00mm S275 Steel 12.68 12.68
Shear (kN) 8.53 8.53
Tensile (kN) 12.68 12.68
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