This "Auto Anything" Link will have all your verbage and pieces for the cables your looking for, at the very least you can click description to see a pic and then know what to ask 4.
I think it is called a pin what your wanting..
there are also terminology re throttle cable for guide, coupling, conector, knob, stop, socket... but I think also the other item you may be wanting is a "sheath" protetive guide tube? (guide tube can get at Pelican parts at least for the other cables trunk relaese ect.)
I did not know any of this either until I went to this link..
double click you thingy on it..
http://www.autoanything.com/fuel-systems/201A4369.aspxhere is a link to Cad Plated Pins..
http://cgi.ebay.com/ebaymotors/VW-VOLKSWAG...sQ5fAccessoriesClick to view attachment