WTB M5X0.8mm drilled head fasteners HELP!

[jride200]

Hi All. I'm hoping to make use of the huge collective knowledge of this site. Anyway... I'm looking for M5 X 0.8mm socket head cap screws with heads drilled through each of the internal wrench flats to accept safety wire. I've had a particularly difficult time finding these fasteners and any help would be greatly appreciated. Length is somewhat unimportant as I can cut them down if need be (12 or 15mm length seems to stick out in my mind so at least this long). Strength grade need be 8 or 12--strong--and with a black oxide finish. Thanks! Jason