for round tube and square tube
Catalogue
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d1
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s
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d2
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d3
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l1
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l2
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l3 +0.5
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w
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For tubes GN 990
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GN 992.5-D20-M8
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D 20
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-
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M 8
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16
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29.5
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2.5
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16
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2
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D 20
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28
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GN 992.5-D25-M8
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D 25
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-
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M 8
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21
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29.5
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2.5
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16
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2
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D 25
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80
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GN 992.5-D25-M10
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D 25
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-
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M 10
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21
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29.5
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2.5
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16
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2
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D 25
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50
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GN 992.5-D30-M8
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D 30
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-
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M 8
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26
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29.5
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2.5
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18
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2
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D 30
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93
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GN 992.5-D30-M10
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D 30
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-
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M 10
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26
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29.5
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2.5
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18
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2
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D 30
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90
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GN 992.5-D40-M10
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D 40
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-
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M 10
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34
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33.5
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2.5
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24
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3
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D 40
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186
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GN 992.5-D40-M12
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D 40
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-
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M 12
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34
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33.5
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2.5
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24
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3
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D 40
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180
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GN 992.5-D50-M12
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D 50
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-
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M 12
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44
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37.5
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2.5
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30
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3
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D 50
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350
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GN 992.5-D50-M16
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D 50
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-
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M 16
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44
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37.5
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2.5
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30
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3
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D 50
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330
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GN 992.5-V20-M8
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-
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V 20
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M 8
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-
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29.5
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2.5
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16
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2
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V 20
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32
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GN 992.5-V25-M8
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-
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V 25
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M 8
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-
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29.5
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2.5
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16
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2
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V 25
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61
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GN 992.5-V25-M10
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-
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V 25
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M 10
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-
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29.5
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2.5
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16
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2
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V 25
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58
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GN 992.5-V30-M8
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-
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V 30
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M 8
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-
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29.5
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2.5
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18
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2
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V 30
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106
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GN 992.5-V30-M10
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-
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V 30
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M 10
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-
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29.5
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2.5
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18
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2
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V 30
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103
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GN 992.5-V40-M10
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-
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V 40
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M 10
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-
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33.5
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2.5
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24
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3
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V 40
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216
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GN 992.5-V40-M12
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-
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V 40
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M 12
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-
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33.5
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2.5
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24
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3
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V 40
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211
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GN 992.5-V50-M12
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-
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V 50
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M 12
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-
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37.5
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2.5
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30
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3
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V 50
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420
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GN 992.5-V50-M16
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-
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V 50
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M 16
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-
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37.5
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2.5
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30
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3
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V 50
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390
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Stainless Steel AISI 303
Drive the Stainless Steel-Insert bushings GN 992.5 in by using a soft-head mallet. Their lamellas bridge a production tolerance of the internal diameter or of the internal square of ±0.5 mm, allowing screws to be mounted in tubes.
The dimensions match those of the construction tubes GN 990 , but checking the tolerance position of the tube is recommended.