The drawbacks of the Cleco's supplied are well known (assymetry, small
lip etc.) I have "inherited" some "Kwik-lok"'s. They are symmetric and
you use a tool like a pair of pliers to compress a heavy internal spring,
insert the shaped ends in the hole, and on release of the spring, a
central tongue is forced between them. The whole operation is one-handed
and instant, resulting in a firm grip which has not so far pulled through
anywhere without using washers. Unfortunately I don't know the source or
the price, but they are well worth a search.
gemin
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