ac cables falling out of IEC inlets on amps


I use medium weight power cables with Marinco connectors.They sound good, but they fit in the IEC inlets on my monoblocks only loosely and can easily loose their connection. I am considering replacing the inlets on the amps with ones that solidly grip the powercord.
Any suggestions?
pummy
I have found that the IEC's contacts are recessed and barely make contact with the pins in the IEC socket. I have had good sucess by cutting about 1/16 inch of the end of the plug using a fine tooth hack saw.

I think the blu-tack is a great idea. It will help dampen the connection and I will try it.
Markertek was wrong but if you google iec connector retaining clip, the first hit you get IS (drum roll, pls)....
>http://www.boltproducts.com/heyco/iec-safety-retainer-clip.html
, which takes you right there. Its not always easy to get them installed if you hae big fingers, but there it is.
Man, I guess that some Audiophiles are REALLY anal. I am using a very heavy power cord on my tube preamp, which sits on the top shelf. The weight of the cord will pull it out just enough to create a problem with the right channel.

The Blutack fix is cheap it works, it's removable [it's been in place for 2 years with no slippage], it doesnt require a major project involving time & money, and as others have suggested, it might even dampen vibrations.

Watch Apollo 13 to see what can be done to improvise a solution [the CO2 scrubber problem]. Sometimes, even a rocket scientist doesn't have to be a rocket scientist...just a handy-man with common sense!
for some reason that link does not take you to the right page in the catalog, but its a Heyco #0915 IEC Safety retainer clip.
Swampwalker, Thanks, I found it. Does the wire pivot or is it fixed? It does not look like it would work. The dimensions of the notch and length of the wire seem designed for stock Belden-type cables.