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  #1  
Old 01-03-2018, 01:40 PM
goanddo goanddo is offline
 
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Default Proud Screw in transponder tray

This is a picture of the remote transponder tray for the Garmin GTX 35R/45R. The problem is the the screw I ordered, a (ms224694-s50) 10-32 flat head screw sticks up proud inside the tray. The tray came with the hole counter sunk. Should I have ordered a different screw? Has anybody else had this problem.

Thank you.



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  #2  
Old 01-03-2018, 01:48 PM
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bkervaski bkervaski is offline
 
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I ordered a bunch of random sizes from aircraft spruce just for the avionics .. I don't recall which ones I used but they fit well. Try #8 .. not many options, you can't really adjust that hole.

Edit: Also test fit the unit once you go down a size, even if it's slightly proud the unit may not touch the screws, I remember this being the case with mine.
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  #3  
Old 01-03-2018, 01:52 PM
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Here's my brackets; $10.00 for experimental version, $2499.99 for certified:

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  #4  
Old 01-03-2018, 02:06 PM
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ChiefPilot ChiefPilot is offline
 
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A #10 screw is too big. I think I used #8 screws.

The installation manual will have the proper hardware callouts in any event.
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  #5  
Old 01-03-2018, 02:06 PM
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n82rb n82rb is offline
 
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I don't know what the garmin manual calls out but a number 10 sounds rather big for a avionics tray.

Bob burns
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  #6  
Old 01-03-2018, 04:16 PM
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I used a #6 flat head, I believe (6 places); the head on the #8 seemed a bit proud, too...
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  #7  
Old 01-03-2018, 04:19 PM
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I used a #8 or #6 IIRC.
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  #8  
Old 01-03-2018, 04:38 PM
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az_gila az_gila is online now
 
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No wonder you had trouble.

The Garmin typical installation guidance manual (I used the GTX345 one) calls out #6 hardware.

3 locations per side. Two at the front and one as a rear support.
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Last edited by az_gila : 01-03-2018 at 04:45 PM.
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