Hi guys can't find them anywhere but they are cable ties with a rawl plug attached, you fold the plug together push in the hole and then hammer the pin in to secure, can't remember what they are called?!!
Think I know what you mean we used to call them Hilti loops but I can't find them either
closest I found was at screwfix, try http://www.NoLinkingToThis/p/clip-fix-cable-strap-ls-8-to-28mm-pack-of-100/35582?_requestid=822340
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc