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  #1  
Old 01-17-2003, 11:34 AM
mike48114 mike48114 is offline
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Join Date: Aug 2000
Location: Brighton, MI
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Cement Screws

I am using Cement Screws to ancor a shed I built to the concrete slab below. Do I have to pre drill holes?
  #2  
Old 01-17-2003, 01:47 PM
JeffY JeffY is offline
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Location: Omaha, Nebraska
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You shouldn't have to pre-drill the holes as long as you got a heavy-duty drill to help out. IMO, I would have installed lag screws upside in the concrete while it was still wet and drill a hole in the bottom plate for it and just washer and nut it. But you can't really do that if it's an existing concrete pad.
  #3  
Old 01-17-2003, 03:56 PM
Arc Burn Arc Burn is offline
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I would use concrete anchors instead of screws,like 3/8 or so,drill a hole set it in use a washer and nut and as you tighten the nut,the anchor expands,much stronger than the screws and not to expensive.JMO,BTW,we always drilled a pilot hole just to make it easier put you don't have to.
  #4  
Old 01-17-2003, 05:57 PM
jkkalbers jkkalbers is offline
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If they are Tap-con screws (the blue ones) you need to pre drill. If you buy a box of them, it comes with a bit.
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  #5  
Old 01-17-2003, 06:09 PM
Lawn Tek Lawn Tek is offline
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Use a hammer drill, tapcons are stong but We use a threaded stud that you drive in the hole , you cant pull it out
  #6  
Old 01-18-2003, 04:00 PM
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1grnlwn 1grnlwn is offline
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ditto on the drill hole. either anchors will work!
  #7  
Old 01-25-2003, 03:07 PM
Jason Pallas Jason Pallas is offline
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Just Weld it to the cement slab - whoops, sorry I thought this was the welding forum.

Just Kidding
  #8  
Old 01-26-2003, 11:43 PM
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1grnlwn 1grnlwn is offline
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Location: Central Illinois
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Ok there isn't a way to weld concrete, but did you know there is a cutting torch for concrete? It is one bad mo fo! It,s on a long pipe so the operator can stay back, way back.

Mark
 

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