Looking for a Rectangular Carabiner type product

i am looking for something like this, but a little bit longer (about 3"):

http://www.etsy.com/listing/104312777/vintage-silver-tone-rectangular

basically i have two inch-long loops that are about 3" apart from each other. i want to have a rectangular metal device that hooks through both. since the loops are fixed and cannot be open/closed, i need this contraption to open and close, or unlock and lock together once in place. i do not care if it is actually a carabiner. anyone have any guesses? i have had trouble searching for it, but that may be just because i don't know the right term.