High performance low profile concrete screw anchor ideal for installing channel systems Large diameter 17mm head to cover the channel systems slot ETA Option 1 approved anchor for cracked & non-cracked concrete Fire rated up to 2 hours C1 seismic approval for Ø6 New patented thread design provides easy setting and increased loads Low profile dome allows for channel nut to move with the channel when fixed Torx drive for easy installation between channel walls