Brief Description: ClickBond Test 1 Through a layup.
I want to use Clickbonds in my build but I've never tested them myself. Will they turn when you torque up a nut? How strong are they? Are they going to be OK for primary controls?
Test 1 is going through a layup say instead of an AN screw for the rudders for example. A separate test is needed for a bond to the outside of a surface.
For my test I used a clcikbond that takes a standard AN3 nut. I used a four ply layup of BID. I after drilling a hole for the thread I routed a circle so the metal base wouldn't stand proud of the outside. I probably lost most of one ply doing this. I floxed the clickbond in place. I did not prepare the surface by cleaning it. I did not drill holes in the base to make fingers for the flox to grab. I wanted a worst case bond to test. I covered the outside disk with the thinnest glass I have and peel plyed it. The result was an almost smooth surface.
After cure, I used an AN3 lock nut and torqued to spec of 25 inch lbs (most references have AN3's 20-25 inch pounds) I kept upping the torque values. At 100 inch lbs the click bond distorted as you see in pic 3. At 120 inch pounds the click bond failed by snapping at the base. I was using a wide area washer. The glass did not fail and the click bond never rotated.
After this I have no hesitation in using these fasteners where applicable.
