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What is a T-nut and how does it work?
How do you fasten ‘Bolt-on’ climbing holds to wood climbing walls?
This guide is intended to be a quick explanation for customers who
are brand new to climbing.
Prior to fastening bolt-on climbing holds to wood climbing walls, t-nuts must be installed in the back of the climbing wall. The bolt will go through the climbing hold, through the wood, and into the t-nut. A t-nut is basically a nut with a flange on one side. If you need help installing t-nuts check out our instructions here:
How to Install t-nuts
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The barrel of the t-nut can fit into a
7/16” hole, but the flange is 1” wide so it cannot fit through
the hole. The flange catches the
surface of the climbing wall surrounding
the 7/16” hole.
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The Barrel of the T-nut should be
recessed behind the front surface
of the climbing wall by at least 1/
4”.
Climbing holds must not make direct
contact with the t-nut. If the
climbing hold makes direct contact
with the t-nut it will eliminate
the friction between the surface of
the climbing wall and the back of
the climbing hold. Climbing holds
must have good contact with the
climbing wall in order to be secure. Let us know if you have any questions!
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