Chuck,
You are never a pest, I enjoy the conversations. The RS stackable Gold Banana plugs I use are not available on line except directly at Radio Shack.com. I need to go back and purchase one more set of them, for one of my KW's. I will post pictures of them for you to see, your you can punch up Radio Shack.com for a closer look. These RS Banana Plugs are listed on the RS sight, as 12 Gauge Locking Style Banana Plugs 278-307.
PCRR/Dave
RS 278-307 Banana Plugs
In the 2nd picture you see the female end of the Banana Plug, with the spike adapter, beside the black cover, the spike tip screws into the male portion of the Banana Plug, this needs to be unscrewed from the female portion of the plug, and the threads on that end of the female, need to be tapped slightly larger, to exactly fit the ZW Posts. You then simply screw the female end of the Banana plug, on to the ZW Posts, works like a charm.