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Type 18
Internal Coupling
An internal spigot providing a flush joint between two tubes of the same diameter. Not as strong as Type 14 and must not be used where a direct tensile load is applied. This fitting can only be used with 3.2mm thick tube.
Note: Type 18 fitting must not be used as a load bearing joint.



Part | Part Name | Weight | Pole A | D | E |
|---|---|---|---|---|---|
18-6 | Internal Coupling, 33.7mm O/D | 0.18 kg | 6 | 76 mm | 20 mm |
18-7 | Internal Coupling, 42.4mm O/D | 0.27 kg | 7 | 76 mm | 20 mm |
18-8 | Internal Coupling, 48.3mm O/D | 0.35 kg | 8 | 95 mm | 20 mm |
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