The Strut Clip Kit allows the FiberRunner Channel or Wyr-Grid Pathway to be attached directly to a standard 1.625 inch W strut structure. Includes (2) Clips, (2) 1/4-20 Channel Nuts without Springs, (2) 1/4-20x7/8 Hex Head Cap Screws, (2) 1/4 Helical Spring Lockwashers.