nails are an excellent method of
fastening, for small boats.
Though perhaps not quite as good riveting, it is
It is certainly more than adequate a fastening method for light
And it can be quite easily done by one person.
These nails are particularly useful for fastening the laps between
Copper Clench Nail
A proper clench nail should
have a chisel shaped
They should be sharp enough to
penetrate the wood when
But not so fine as to allow
the point to curl when being
In the absence of proper
clench nails, copper boat nails
can be used.
Clip the boat nail off at an
angle sloping away from the
direction you are going to clench it.
Then tap it on the end to
produce a barb.
The only tools required for clenching are
hammer to drive and
fitted with a
slightly undersized bit for
boring the pilot holes.
'dolly' / 'holding'
/ 'bucking' iron, a large hammer head will do, or any rounded lump
Clenching the Nail
size of the nails will depend on the size of the scantlings, you will
enough of the point protruding to be able to clench it over into the
the pilot hole
for the nail, this will
reduce the hammering required and avoid the danger of splitting the
Light construction doesn't like too much hammering.
iron' to curl the
nail back on itself as soon as it emerges from the wood.
Or drive it
then place the
'bucking iron' on the head and use the hammer to curl the
point enters the
wood hammer it
It is best
if the nail is
clenched slightly across the
line of the grain rather than along it.
A few light
taps with the
hammer will draw the frame
onto the plank.
Although it will be much faster to work with two people, one nailing
wielding the 'bucking iron', this is a job that can easily be done
by one person working alone.
Rules for the Construction of Wooden Yachts, Clench Nails
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