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1. C

   MC Cable vs EMT — running in steel beam

   • COamateur
   • Oct 25, 2020
   • Residential Electrical Forum

   2

   24

   5K

   Nov 2, 2020

    by Quickservice
   1. C

      Cow

      · Registered

      Joined Jan 16, 2008

      ·

      3,451 Posts

      #7 · Oct 25, 2020

      Only show this user

      Tek 5's will get it done.
      
      

      

      (450) TEK 5 Hex Washer Head 12-24 x 1-1/4 Self-Drilling HD Steel Screw IHW: Amazon.com: Industrial & Scientific

      (450) TEK 5 Hex Washer Head 12-24 x 1-1/4 Self-Drilling HD Steel Screw IHW: Amazon.com: Industrial & Scientific

      www.amazon.com

      
      We use these on steel columns and beams all the time.

      Show Less

       
   2. 

      joe-nwt

      · Registered

      Electrical Contractor

      Joined Mar 28, 2019

      ·

      5,647 Posts

      #10 · Oct 25, 2020

      Only show this user

      Cow said:

      Tek 5's will get it done.
      
      

      

      (450) TEK 5 Hex Washer Head 12-24 x 1-1/4 Self-Drilling HD Steel Screw IHW: Amazon.com: Industrial & Scientific

      (450) TEK 5 Hex Washer Head 12-24 x 1-1/4 Self-Drilling HD Steel Screw IHW: Amazon.com: Industrial & Scientific

      www.amazon.com

      
      We use these on steel columns and beams all the time.

      Click to expand...

      This style works. I've some like that that i've used to drill/tap a half dozen 1/4" holes in 1/4" plate using the same screw.
      
      I also have some that are designed for 1/2" steel.

      Show Less

       

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