Below are possible answers for the crossword clue Fastening peg.
6 letter answer(s) to fastening peg
TOGGLE
a fastener consisting of a peg or pin or crosspiece that is inserted into an eye at the end of a rope or a chain or a cable in order to fasten it to something (as another rope or chain or cable)
a hinged switch that can assume either of two positions
any instruction that works first one way and then the other; it turns something on the first time it is used and then turns it off the next time
fasten with, or as if with, a toggle
provide with a toggle or toggles
release by a toggle switch; "toggle a bomb from an airplane"
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