Hi     Steve,

   Try searching for : "cable strain relief bushing".

Good luck,
Rob  K6DQ
On 3/14/2015 6:09 PM, Steve Forst wrote:
> I'm tinkering around with a little project that will have 2  cables
> (like microphone cable size) entering a metal box.    I can use rubber
> grommets to protect the cables, but  they could accidentally pull
> through the grommet.
>
> I could use zip ties, or hot glue, or knot the cable inside the box to
> prevent a pull through, but that's kind of rinkey dink.
>
> I've seen hard plastic things that fit the chassis hole and when the
> cable is passed through, a little thing on the inside clamps down to
> lock the cable.   Anybody know what these things are called?   I'd like
> to look on ebay, but have no idea what item to search for.
>
> Tnx, Steve KW3A
>