You are NOT buying a HiFi . 

You are buying the SCREW PACK ONLY for BeoSound 9000 Floor Stand as shown in the image, this item is manufactured by STBbrackets. We are the manufacturer. 

This Screw Pack ONLY is compatible with the original Bang & Olufsen Floor Stand and the Floor Stand manufactured by STB brackets. You have lost your screw pack and so can't mount your Floor Stand.