Securing 5-in-1 sensor to galvonized steel pole?

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I have mounted a 3/4 inch galvonized steel pole to my chimney with Tapcon's and the 5 in 1 sensor fits on it. However, the little screws that originally came with the sensor to secure it to the original mount have stripped away much of the plastic. I was thinking of using self tapping screws, but I am not sure if they will work on the galvonized steel pipe. Does anyone have any ideas? 

The sensor does not swivel very easily but I am thinking in a very strong wind it may move a bit.
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Tim Gilroy

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Posted 1 year ago

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Ledrak

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drill holes in the pipe then run the screws in.
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Tim Gilroy

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I will do that. What size of hole should I drill and then what size of screws should I use? Can't really use the existing screws as they are pretty much useless and would not be long enough to go far enough into the pipe.
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Ledrak

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Tim the holes should be just slightly smaller than the screws so the screws can thread in.  They also make self drilling screws they have a drill point on the end not sure what they are called. As far as length get some just a little longer than the ones that came with the unit, from memory I would guess 1/2 - 3/4 inch.
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Ledrak

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Tim the holes should be just slightly smaller than the screws so the screws can thread in.  They also make self drilling screws they have a drill point on the end  they are called "Teks",  As far as length get some just a little longer than the ones that came with the unit, from memory I would guess 1/2 - 3/4 inch, don't go to long you don't want to go all the way through the pipe.
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AcuRite Jennifer

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Hello Tim,

When you do mount the sensor you want to make sure it is secure enough to where it is not able to move. If you do get a good gust of wind and the sensor is not secure it will end up registering rain when it is not raining.
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Tim Gilroy

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Thanks. I ended up drilling the two holes with a 1/8 cobalt bit, and then driving in two #8 screws of 3/4 length in. It is now very secure and does not move. For anyone wanting to mount it to a 3/4 inch galvanized pipe, just simply do what I did above.