Fastener Systems

DrillFast® Stainless flat panel fastener

A4/316 grade stainless steel low profile fastener and plate combination for fixing to heavy section steel.

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Delivery: 1 day
Product code
DF12-SSA4-P-HT-SFW-5.5 x 230


Stainless steel high thread fasteners with specially designed A4/315 stainless steel flat plate sealing washer.

For fastening flat panel systems - particularly in the controlled environment industry, e.g. Kingspan KS1100CS panel.


  • Unique sealing washer system
  • Wide range of lengths
  • A4/316 grade stainless steel for corrosion resistance
  • Pan head and washer design creates ultra-low profile finish
  • Build-up Min (mm) 129
  • Build-up Max (mm) 198
  • Length (mm) 230
  • Suitable for drilling into steel Min (mm) 4
  • Suitable for drilling into steel Max (mm) 12
  • Install with RedDrive
  • Diameter (mm) 5.5
  • Fastener material A4 / 316 stainless steel