I bought mine from Ebay for about £60 and had zero issues 


Rather than start a new topic I thought i'd ask here.
This might sound a bit newbish but I've had spacers on like those above since I got the car however they were just attached on with longer bolts though the holes with no threads (the holes filled with bolts holding it to the hub on the top picture) Is this totally wrong and could it cause problems? I think my baring is going which is the only reason i've been search through things and ended up noticing?!
I've recently switched to some 15mm alli ones, which are not threaded, i'm guessing the ones I have on now aren't hubcentric and the 20mm bulky ones I had on before were hubcentric but I had them fitted wrong, would that be right?! If so Am i better switching back but fitting them as above?