chuck, i am assuming you are talking about on the trolling motor?
here is what i used to do and what i do now
i used to use a large hose clamp, well i like to fish in timbered up areas alot and i kept tearing up tansducers, at like 40-70$ a piece[:@]
now i use nothing but tie wraps, if i tear the tansducer off, i simple pull the TM up and put on a couple of new ties, for me it is the cheapest and most time efficiant thing to do

, i'll try to do some pics but i am very busy as it is haying time here