High quality "locking" IEC connectors?


Does anyone know of a high quality IEC connector (pure copper conductors w/plating) that actually locks into place? Something similar to the connection for a balanced interconnect? or maybe something like a twist lock connection? I'm sick of trying to prop up my power cords to ensure that they are connected securely. I've seen some lower quality connectors available but nothing with good quality copper conductors. This seems like such an obvious need in high end audio. Anybody have any ideas?
128x128keithmundy
Those Iego are very very nice! I've never seen that brand before. Thank you so much for that info. Do they lock together though? I couldn't tell and they did not mention anything to that effect. I'll shoot them an email and find out. Thanks again for taking the time to respond. This is an excellent lead.
Keith,

Check this out, may be what you're looking for: http://www.quail.com/images/Cable_Retaining_Clamps.pdf

Best regards,

Kenobi
Kenobi, Those seem to be for specific molded IEC ends. Most of the heavy audiophile power cords (the ones that do not want to stay in place) have large, round ends.
The quail retainer clips might not be what you're looking for, but they've given me an idea for a clip that I may be able to fashion from ebony for the same purpose.
It might not work with all models of power cord, but I've found that tightly wrapping a turn or two of electrical tape around the male plug usually snugs them in.