The fork dropout does have an enlarged area that the washer nub? fits into, and it does function to hold the axle in until the nut is very loose, like a lawyer clip. I also have seen the marks from one on the rear dropouts, and the rear slot being a little larger than the axle I think they belong back there also. But I only have the ones from the front. If anyone knows where to find them, I've looked on Porkchop and seen nothing, on another BMX site also, can't remember which one.
If anyone knows where to find them?