Weld a nut to it, it always works. If you are breaking welds then you need to weld better, lay it right in there with lots of heat.
or...
Try the stuff below
http://compare.ebay.com/like/310359816986?var=lv<yp=AllFixedPriceItemTypes&var=sbar
or...
Try the stuff below
http://compare.ebay.com/like/310359816986?var=lv<yp=AllFixedPriceItemTypes&var=sbar