Before I would ever pay 7 bucks (plus postage) for 10 short screws, I will buy myself a 3mm x .6mm round die and make my own from the much more available standard size 3.5mm x .6 mm screws!
Click here:
http://www1.mscdirect.com/CGI/NNSRIT...MT4NO=21625423
Just turn down some of the common 3.5mm screws available from 'Micro Fasteners' and then re-thread with this die.