3/4" EMT Clip 27mm Pin with Threaded Head, Powers 8mm Diameter Head Drive Pins with EMT Conduit Clips for Powers Gas Fastening Systems, .145 Shank Diameter, 50278-PWR

For use in concrete, concrete over steel deck, concrete masonry walls and steel. They are used for applications where it may be desirable to remove the fixture or where shimming may be required or for suspending small diameter pipe (e.g. water lines, sprinklersystems).