I took apart my N810, discovered it was missing two of its construction screws, and would like to put it back together complete and with new nylon-coated screws. I was wondering if anyone here has bought replacement screws before, and if so, where from? A quick check of local hardware stores failed to locate sufficiently small screws. The service manual says the screws are M1.4x2.8 and M1.4x5.0.