lol,,, I used to buy same tin loads in Karachi, from lawrence road - a few shops knew what I wanted and kept aside these for me, same in shershah scrap market. Usually exchanged for Rs 100/- to Rs 500/- depending on what was there.
while most people wanted the "jenyan japani style" bolts n nuts with material hard as cheese I would buy these.
hmm - customs declaration on used fasteners would really raise some eyebrows,, specially our customs who are smart as a pack of ciggies.