Hi, I removed the bumper the other day in order to change the valance, had no problem other than that I dropped the two nuts inside the body of the car when I removed them. I cant reach them at all with a telescopic magnetic too, nor can I see any way to retrieve them from underneath. Basically what I need to know is were they just normal 10mm nuts with a washer or is there something fancy about them? I need to replace them either way but dont know if i can just use any washer and 10mm nut what with different size threads etc... Any help would be great. I know it was stupid of me to have dropped them in the first place but my deep reack sockets arent magnatised.