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Instructions for use of climbing holds

User manual

Installation, use and maintenance of climbing holds

This guide applies to all climbing holds, macros, and GRP volumes from RX Climbing Holds. It describes the installation, maximum tightening torque, periodic inspection, and intended use.

Manufactured according to DIN EN 12572-3PE & PU climbing holdsGRP macros and volumesAs of November 2026
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01 — The most important thingKey moments at a glance

The standard DIN EN 12572-3 does not specify a tightening torque, but requires the manufacturer to state the maximum tightening torque. The following values apply to the grips and volumes of RX Climbing Holds.

M10 screw connection20 – 40 NmCylinder head screw M10 according to DIN 912, strength class 8.8. Tighten with a torque wrench.
Spax screwLevel ≈ 15Cordless screwdriver with slip clutch, not the drill setting. Guideline value on an 18V machine.
NeverImpact wrenchAn impact wrench generates over 100 Nm, sometimes up to 180 Nm. The handle and mounting are damaged in the process.

02 — Before assemblyCheck substrate and material

  • Installation is only possible on level, load-bearing surfaces.
  • Wooden panels: Minimum thickness 18 mm, fastened according to the wall manufacturer's instructions or according to DIN EN 12572.
  • Visually inspect the handle, screw and insert nut or anchor for damage before each installation.
  • Use only undamaged screws. Deformed or stripped screws are replaced, not tightened.
  • Clean the borehole of drilling dust before inserting a drive anchor.

03 — Mounting methodsM10 or Spax

Variant A
M10 screw connection

For handles with an M10 bore. In wood, use a T-nut; in concrete, use an M10 drive-in anchor.

  • screw M10, DIN 912, 8.8
  • Tool Hex socket SW 8
  • Tightening torque 20 – 40 Nm
  • Drill diameter 12 mm
  • Anti-rotation device Spax, additionally

Choose a screw length that ensures the thread fully engages in the insert nut and the screw does not rest on the surface. Tighten using a torque wrench.

Variant B
Spax screw

For handles, macros, and GRP volumes with standard screw holes. For volumes, the screw is countersunk flush with the recessed rosette.

  • screw Spax 4.5 or 5 mm
  • Head shape countersunk head
  • Tool Cordless screwdriver with coupling
  • torque stage up to about 15
  • Hardwood pre-drilling

The handle is secure once it's firmly against the wall and can no longer be twisted by hand. Tightening it further doesn't provide any additional security; instead, it will compress the material.

04 — Assemblystep by step

  1. Set positionPosition the handle at the designated hole or position and determine the direction of rotation of the handle.
  2. Check contact surfaceThe back of the handle must lie flat against the wall without any gaps.
  3. Attach the screwScrew in by hand a few turns until the threads engage cleanly. Avoid tilting.
  4. Put onFor M10 screws, tighten to the specified torque using a torque wrench. For Spax screws, use the engaged slip clutch until the handle is firmly seated.
  5. Secure against twistingSecure larger handles, macros and volumes against twisting using a Spax screw via the additional hole.
  6. ControlCheck by hand whether the handle can be twisted. If so, check the seat and fastening.

05 — SecurityWarning notices

No impact wrench, no lever tool

  • An impact wrench typically generates a torque of well over 100 Nm, sometimes up to 180 Nm. This permanently damages the handle and mounting.
  • Ratchets and extensions that do not allow control of the tightening torque are equally unsuitable.
  • The load-bearing capacity of the T-nut or T-anchor used is also crucial. Standard T-nuts for wood can fail even below 40 Nm. In this case, the lower value specified by the fastener manufacturer applies.
  • The specified maximum tightening torque must not be exceeded.

Material and area of application

  • PU handles are suitable for indoor use only.
  • PE handles are suitable for indoor and outdoor use.
  • GRP macros and volumes They are lightweight and dimensionally stable and are screwed together across their entire surface.

06 — ExamRecurring inspection

  • Before each use: Visually inspect the handles and the fall zone for damage and changes.
  • Regularly, depending on usage intensity: check that all handles are securely fastened and tighten if necessary. A logbook is recommended for commercially used facilities.
  • At least once a year: complete inspection of the system including fasteners.
  • Replace damaged handles and damaged mounting hardware immediately.
  • If a handle can be twisted by hand, it must not be used until it is reattached.

07 — CareCleaning and disposal

  • Clean with warm water, mild soap solution and a soft brush. Then allow to dry completely.
  • Do not use solvents or aggressive cleaners.
  • Reattach handles only after they are completely dry.
  • Dispose of discarded PE and PU handles, as well as GRP volumes, via the municipal recycling collection. Metallic fasteners belong in the scrap metal recycling.

08 — Intended UseLiability information

Climbing holds, macros, and volumes are intended exclusively for installation on suitable artificial climbing structures. Fall protection, fall arrest systems, and the structure of the installation must comply with applicable regulations and are the responsibility of the operator.

No liability is accepted for damage caused by improper assembly, exceeding the specified tightening torque, use of unsuitable fasteners or lack of inspection.

Further information: Mounting climbing holds – detailed instructions · Screws and fasteners · Questions about assembly

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