Have you looked at this Flexson stand? 
https://www.crutchfield.com/p_870PL5STDB/Flexson-Floor-Stand-Black.html

The Flexson stands do a good job. They used to make a ‘premium’ version which was much better looking, but functionally the same as the one linked above. There’s no fastening bolt, but there’s a sturdy bracket that holds the speaker in place very well and the bases are very wide so give plenty of stability. The fives will be perfectly safe unless you intend to rugby tackle them on a regular basis! 

Thanks for the info , I will take a look