Round expander with M12 bolt

Round expander with M12 bolt

With this expander, you can easily mount wheels with a central bolt hole on hollow (scaffold tube) table and chair legs. The round expander with an M10 bolt and M12 adapter is suitable for round tubes.

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With the supplied M12 adapter, a handy ring, you can expand the M10 bolt of the expander to M12.

The size of expander you need depends on the inside diameter of the tube:

• Expander 20-25 mm is suitable for tubes with an inside diameter of 20 to 25 mm. Expander length: 64,8 mm.
• Expander 25-30 mm is suitable for tubes with an inside diameter of 25 to 30 mm.
• Expander length: 64 mm.
• Expander 30-35 mm is suitable for tubes with an inside diameter of 30 to 35 mm.
• Expander length: 64 mm.
• Expander 35-40 mm is suitable for tubes with an inside diameter of 35 to 40 mm.
• Expander length: 62 mm.
• Expander 40-45 mm is suitable for tubes with an inside diameter of 40 to 45 mm.
• Expander length: 63 mm.

Note: Always measure the inner diameter of the tube for the correct sizing.

Assembly expander

For the assembly, you can follow these simple steps:

1. Use a wrench to loosen the wheel and remove it from the fork.
2. Remove the hex bolt from the expander.
3. Insert the hex bolt from the bottom into the fork.
4. Place the expander on top of the swivel ring.
5. Lightly tighten the expander with the hex bolt.
6. Insert the expander into the hollow tube.
7. Secure the expander with the hex key.
8. Place the wheel back in the fork.
9. Tighten the wheel with a wrench.