TECHNICAL INFO
CERTIFICATE 12572-3
VOLUME:
HRT
holds is the first company in the holds business to introduce volume as a
universal and ultimately precise way for comparison of the holds sizes.
The
feature of a hold that is in fact used by a climber is the shape, and the only
precise way to estimate the size of the shape- is the volume. Any other
measurement like weight or length is not accurate, because the weight may vary
within wide limits depending on the material density of the formula, and the
length is always 2 dimensional and cannot describe and define the 3D nature of
the climbing holds.
That
is why we have decided from now on- as well as using the current non-precise,
but popular ways for defining the sizes of the holds, to offer the information
for the volume of each hold and set in cubic centimeters.
This
will give our clients the possibility to calculate the real value of the holds
they have received for their money. Hopefully other hold manufacturers will
follow suit.
TIGHTENING
TORQUE
The
level of tightening torque is important for a few reasons:
- the torque should
be big enough in order for the climbing hold not to rotate around its bolt
- the torque on the
other hand should not be too big, because a hold can break in case of over-
tightening and also damage the fixing points in the climbing structure
Depending
on the size of the holds, we are recommending the following tightening torque
for the bolt-on holds:
S –
25-30 Nm
M –
30 – 35 Nm
L –
30-40 Nm
XL –
40-50 Nm *
Mega
– 50 Nm *
* In
case a hold has a second hole- for adding a screw – the levels of tightening
torque can be reduced with 5 Nm.
BOLTS
The
bolts needed for every set are specified in a table in the info section.
The lengths apply for the cap-head bolts. In case countersunk bolts are to be
used – the next available length of bolt should be applied.