can anyone tell me were I can find the clip nuts,fold over nuts not sure what they are called that clips in front frame were front bumper bracket bolts to frame on a 67 chevelle.any help needed thanks

I also tried to find these "clip nuts" to no avail. They are threaded for a 1/2" bolt.
I took a larger new "clip nut" and ground the threaded part off of it and then brazed a 1/2" nut to the clip and then painted it black. It worked just like the original. The nut side of the clip is inside the frame and can not be viewed. No one will know the difference.
I hope this helps.

were did you find larger clip nuts I can only find small ones like for the fender wells

The correct term for them is "U-nuts". The ones with the shorter bend-over are called "j-nuts". I worked for a fastener distributor for 5 thankless years and that is all that I learnt.

I used one of the larger clips that came in the front end fastener kit. It was about the size of one of the clips that hold the bottom of the fender on.