Nesting dinghy clamps
 

In the course of building my Tolman Skiff, I bought two new large "C"
clamps for about $10.00 each. When I got home, I found they are of an
unusual design. They have a push button that allows the screw to slide
until released and then you tighten it normally. They also seem to be
made of some alloy as they are lighter than steel ones of the same
size. This concept is just what I need to replace the bolts and nuts I
use to hold my nesting dinghy togetther if they just had a deeper
throat. Anybody seen such?

Nesting dinghy clamps
 

wrote:
In the course of building my Tolman Skiff, I bought two new large "C"
clamps for about $10.00 each. When I got home, I found they are of an
unusual design. They have a push button that allows the screw to
slide until released and then you tighten it normally. They also
seem to be made of some alloy as they are lighter than steel ones of
the same size. This concept is just what I need to replace the bolts
and nuts I use to hold my nesting dinghy togetther if they just had a
deeper throat. Anybody seen such?

They are called "speed nuts". The holes are larger than bolt diameter
and out of round so that when they are tilted the threads aren't engaged
and the nut can be slid. Usually, they are thinnish, stamped metal but
you can also find them regular size too.

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dadiOH
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Nesting dinghy clamps
 

Hmm, I found some "speed nuts" in the MSC catalogue where you press a
button on the side to allow them to slide. They are $6.72 each which
may be ok.