You can drill the heads of the bolts and safety wire them together. That will stop any movement and put your mind at ease. Just make sure you drill them before installation.
This is what it would look like on an aircraft. Your results may vary but you get the idea.
http://image.customclassictrucks.com/f/techarticles/1003cct_how_to_safety_wire/28178947/1003cct_16_o%2Bhow_to_safety_wire%2Bbolt_heads.jpg
Last edited by homer52; 10/09/2014 4:27 PM.
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