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Expansion Sealing Plugs - Metric

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These metric-sized expansion sealing plugs are intended to offer efficient, high-pressure sealing of apertures or cavities, obstructing the entry of dust, moisture, air and gas.

The expander ball is inserted into the plug sleeve. The plug ball's separate grooved sealing rings are pushed into the housing. It stays in place with the ball pressed up against the counterbore shoulder.

It is simple to install since it does not need tapping, reaming, machining of O-ring grooves, or using tapes or sealants. Commonly used in applications, including fluid power systems, pneumatic systems, hydraulic systems, industrial and valves.

  • Material: Plug body: case hardened steel (zinc-plated), stainless steel or aluminium
  • Ball: heat-treated bearing steel or stainless steel

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Product SKUs information
Item Code Price range Availability Ball Material d2 +0.1|-0.0 l2 d3 max Body Material l1 d1 View
38 In stock
Steel
3.0
4.6
2.2
303 Stainless Steel
3.6
3.0
In production
316 Stainless Steel
5.0
7.1
4.3
316 Stainless Steel
5.5
5.0
1247 In stock
303 Stainless Steel
5.0
7.1
4.3
Aluminium
5.5
5.0
280 In stock
303 Stainless Steel
6.0
8.7
5.3
303 Stainless Steel
6.5
6.0
In production
Steel
7.0
10.2
6.4
303 Stainless Steel
7.5
7.0
495 In stock
Steel
7.0
10.2
6.4
Zinc Plated Steel
7.5
7.0
80 In stock
303 Stainless Steel
9.0
13.6
8.4
303 Stainless Steel
10.0
9.0
240 In stock
303 Stainless Steel
10.0
15.2
9.4
303 Stainless Steel
11.0
10.0
334 In stock
303 Stainless Steel
12.0
17.9
10.6
303 Stainless Steel
13.0
12.0
34 In stock
303 Stainless Steel
10.0
15.2
9.4
Aluminium
11.0
10.0
174 In stock
Steel
12.0
17.9
10.6
Zinc Plated Steel
13.0
12.0
In production
303 Stainless Steel
14.0
20.6
12.7
Aluminium
15.0
14.0
50 In stock
Steel
18.0
26.4
16.7
Zinc Plated Steel
19.0
18.0
In production
303 Stainless Steel
20.0
30.1
18.7
303 Stainless Steel
22.0
20.0
544 In stock
303 Stainless Steel
4.0
5.2
3.3
303 Stainless Steel
4.0
4.0
351 In stock
Steel
4.0
5.2
3.3
303 Stainless Steel
4.0
4.0
413 In stock
303 Stainless Steel
4.0
5.2
3.3
Aluminium
4.0
4.0
469 In stock
303 Stainless Steel
5.0
7.1
4.3
303 Stainless Steel
5.5
5.0
251 In stock
Steel
6.0
8.7
5.3
303 Stainless Steel
6.5
6.0
915 In stock
Steel
9.0
13.6
8.4
Zinc Plated Steel
10.0
9.0
    • of 4
Expansion Sealing Plug 3.0 3.6 303 Stainless Steel

20250263


Stock Levels
38 In stock
Attributes
  • d1
    3.0
  • l1
    3.6
  • l2
    4.6
  • d2 +0.1|-0.0
    3.0
  • d3 max
    2.2
Quick View
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Expansion Sealing Plug 5.0 5.5 316 Stainless Steel

20250348


Stock Levels
In production
Attributes
  • d1
    5.0
  • l1
    5.5
  • l2
    7.1
  • d2 +0.1|-0.0
    5.0
  • d3 max
    4.3
Quick View
View Product >
Expansion Sealing Plug 5.0 5.5 Aluminium

20250355


Stock Levels
1247 In stock
Attributes
  • d1
    5.0
  • l1
    5.5
  • l2
    7.1
  • d2 +0.1|-0.0
    5.0
  • d3 max
    4.3
Quick View
View Product >
Expansion Sealing Plug 6.0 6.5 303 Stainless Steel

20250379


Stock Levels
280 In stock
Attributes
  • d1
    6.0
  • l1
    6.5
  • l2
    8.7
  • d2 +0.1|-0.0
    6.0
  • d3 max
    5.3
Quick View
View Product >
Expansion Sealing Plug 7.0 7.5 303 Stainless Steel

20250430


Stock Levels
In production
Attributes
  • d1
    7.0
  • l1
    7.5
  • l2
    10.2
  • d2 +0.1|-0.0
    7.0
  • d3 max
    6.4
Quick View
View Product >
Expansion Sealing Plug 7.0 7.5 Zinc Plated Steel

20250461


Stock Levels
495 In stock
Attributes
  • d1
    7.0
  • l1
    7.5
  • l2
    10.2
  • d2 +0.1|-0.0
    7.0
  • d3 max
    6.4
Quick View
View Product >
Expansion Sealing Plug 9.0 10.0 303 Stainless Steel

20250522


Stock Levels
80 In stock
Attributes
  • d1
    9.0
  • l1
    10.0
  • l2
    13.6
  • d2 +0.1|-0.0
    9.0
  • d3 max
    8.4
Quick View
View Product >
Expansion Sealing Plug 10.0 11.0 303 Stainless Steel

20250577


Stock Levels
240 In stock
Attributes
  • d1
    10.0
  • l1
    11.0
  • l2
    15.2
  • d2 +0.1|-0.0
    10.0
  • d3 max
    9.4
Quick View
View Product >
Expansion Sealing Plug 12.0 13.0 303 Stainless Steel

20250621


Stock Levels
334 In stock
Attributes
  • d1
    12.0
  • l1
    13.0
  • l2
    17.9
  • d2 +0.1|-0.0
    12.0
  • d3 max
    10.6
Quick View
View Product >
Expansion Sealing Plug 10.0 11.0 Aluminium

20250607


Stock Levels
34 In stock
Attributes
  • d1
    10.0
  • l1
    11.0
  • l2
    15.2
  • d2 +0.1|-0.0
    10.0
  • d3 max
    9.4
Quick View
View Product >
Expansion Sealing Plug 12.0 13.0 Zinc Plated Steel

20250669


Stock Levels
174 In stock
Attributes
  • d1
    12.0
  • l1
    13.0
  • l2
    17.9
  • d2 +0.1|-0.0
    12.0
  • d3 max
    10.6
Quick View
View Product >
Expansion Sealing Plug 14.0 15.0 Aluminium

20250706


Stock Levels
In production
Attributes
  • d1
    14.0
  • l1
    15.0
  • l2
    20.6
  • d2 +0.1|-0.0
    14.0
  • d3 max
    12.7
Quick View
View Product >
Expansion Sealing Plug 18.0 19.0 Zinc Plated Steel

20250812


Stock Levels
50 In stock
Attributes
  • d1
    18.0
  • l1
    19.0
  • l2
    26.4
  • d2 +0.1|-0.0
    18.0
  • d3 max
    16.7
Quick View
View Product >
Expansion Sealing Plug 20.0 22.0 303 Stainless Steel

20250829


Stock Levels
In production
Attributes
  • d1
    20.0
  • l1
    22.0
  • l2
    30.1
  • d2 +0.1|-0.0
    20.0
  • d3 max
    18.7
Quick View
View Product >
Expansion Sealing Plug 4.0 4.0 303 Stainless Steel

20250249


Stock Levels
544 In stock
Attributes
  • d1
    4.0
  • l1
    4.0
  • l2
    5.2
  • d2 +0.1|-0.0
    4.0
  • d3 max
    3.3
Quick View
View Product >
Expansion Sealing Plug 4.0 4.0 303 Stainless Steel

20250294


Stock Levels
351 In stock
Attributes
  • d1
    4.0
  • l1
    4.0
  • l2
    5.2
  • d2 +0.1|-0.0
    4.0
  • d3 max
    3.3
Quick View
View Product >
Expansion Sealing Plug 4.0 4.0 Aluminium

20250300


Stock Levels
413 In stock
Attributes
  • d1
    4.0
  • l1
    4.0
  • l2
    5.2
  • d2 +0.1|-0.0
    4.0
  • d3 max
    3.3
Quick View
View Product >
Expansion Sealing Plug 5.0 5.5 303 Stainless Steel

20250324


Stock Levels
469 In stock
Attributes
  • d1
    5.0
  • l1
    5.5
  • l2
    7.1
  • d2 +0.1|-0.0
    5.0
  • d3 max
    4.3
Quick View
View Product >
Expansion Sealing Plug 6.0 6.5 303 Stainless Steel

20250386


Stock Levels
251 In stock
Attributes
  • d1
    6.0
  • l1
    6.5
  • l2
    8.7
  • d2 +0.1|-0.0
    6.0
  • d3 max
    5.3
Quick View
View Product >
Expansion Sealing Plug 9.0 10.0 Zinc Plated Steel

20250560


Stock Levels
915 In stock
Attributes
  • d1
    9.0
  • l1
    10.0
  • l2
    13.6
  • d2 +0.1|-0.0
    9.0
  • d3 max
    8.4
Quick View
View Product >
Expansion Sealing Plug 9.0 10.0 Aluminium

20250553


Stock Levels
85 In stock
Attributes
  • d1
    9.0
  • l1
    10.0
  • l2
    13.6
  • d2 +0.1|-0.0
    9.0
  • d3 max
    8.4
Quick View
View Product >
Expansion Sealing Plug 12.0 13.0 303 Stainless Steel

20250638


Stock Levels
23 In stock
Attributes
  • d1
    12.0
  • l1
    13.0
  • l2
    17.9
  • d2 +0.1|-0.0
    12.0
  • d3 max
    10.6
Quick View
View Product >
Expansion Sealing Plug 16.0 17.0 Aluminium

20250751


Stock Levels
In production
Attributes
  • d1
    16.0
  • l1
    17.0
  • l2
    23.4
  • d2 +0.1|-0.0
    16.0
  • d3 max
    14.7
Quick View
View Product >
Expansion Sealing Plug 16.0 17.0 Zinc Plated Steel

20250768


Stock Levels
49 In stock
Attributes
  • d1
    16.0
  • l1
    17.0
  • l2
    23.4
  • d2 +0.1|-0.0
    16.0
  • d3 max
    14.7
Quick View
View Product >
Expansion Sealing Plug 20.0 22.0 303 Stainless Steel

20250836


Stock Levels
25 In stock
Attributes
  • d1
    20.0
  • l1
    22.0
  • l2
    30.1
  • d2 +0.1|-0.0
    20.0
  • d3 max
    18.7
Quick View
View Product >
Expansion Sealing Plug 22.0 25.0 303 Stainless Steel

20250881


Stock Levels
In production
Attributes
  • d1
    22.0
  • l1
    25.0
  • l2
    34.0
  • d2 +0.1|-0.0
    22.0
  • d3 max
    20.7
Quick View
View Product >
Expansion Sealing Plug 3.0 3.6 303 Stainless Steel

20250225


Stock Levels
10 In stock
Attributes
  • d1
    3.0
  • l1
    3.6
  • l2
    4.6
  • d2 +0.1|-0.0
    3.0
  • d3 max
    2.2
Quick View
View Product >
Expansion Sealing Plug 3.0 3.6 Aluminium

20250270


Stock Levels
410 In stock
Attributes
  • d1
    3.0
  • l1
    3.6
  • l2
    4.6
  • d2 +0.1|-0.0
    3.0
  • d3 max
    2.2
Quick View
View Product >
Expansion Sealing Plug 4.0 4.0 Zinc Plated Steel

20250317


Stock Levels
997 In stock
Attributes
  • d1
    4.0
  • l1
    4.0
  • l2
    5.2
  • d2 +0.1|-0.0
    4.0
  • d3 max
    3.3
Quick View
View Product >
Expansion Sealing Plug 5.0 5.5 Zinc Plated Steel

20250362


Stock Levels
443 In stock
Attributes
  • d1
    5.0
  • l1
    5.5
  • l2
    7.1
  • d2 +0.1|-0.0
    5.0
  • d3 max
    4.3
Quick View
View Product >
Expansion Sealing Plug 7.0 7.5 303 Stainless Steel

20250423


Stock Levels
121 In stock
Attributes
  • d1
    7.0
  • l1
    7.5
  • l2
    10.2
  • d2 +0.1|-0.0
    7.0
  • d3 max
    6.4
Quick View
View Product >
Expansion Sealing Plug 8.0 8.5 303 Stainless Steel

20250478


Stock Levels
445 In stock
Attributes
  • d1
    8.0
  • l1
    8.5
  • l2
    11.6
  • d2 +0.1|-0.0
    8.0
  • d3 max
    7.4
Quick View
View Product >
Expansion Sealing Plug 8.0 8.5 303 Stainless Steel

20250485


Stock Levels
In production
Attributes
  • d1
    8.0
  • l1
    8.5
  • l2
    11.6
  • d2 +0.1|-0.0
    8.0
  • d3 max
    7.4
Quick View
View Product >
Expansion Sealing Plug 9.0 10.0 303 Stainless Steel

20250539


Stock Levels
In production
Attributes
  • d1
    9.0
  • l1
    10.0
  • l2
    13.6
  • d2 +0.1|-0.0
    9.0
  • d3 max
    8.4
Quick View
View Product >
Expansion Sealing Plug 14.0 15.0 303 Stainless Steel

20250683


Stock Levels
In production
Attributes
  • d1
    14.0
  • l1
    15.0
  • l2
    20.6
  • d2 +0.1|-0.0
    14.0
  • d3 max
    12.7
Quick View
View Product >
Expansion Sealing Plug 14.0 15.0 303 Stainless Steel

20250676


Stock Levels
199 In stock
Attributes
  • d1
    14.0
  • l1
    15.0
  • l2
    20.6
  • d2 +0.1|-0.0
    14.0
  • d3 max
    12.7
Quick View
View Product >
Expansion Sealing Plug 16.0 17.0 303 Stainless Steel

20250737


Stock Levels
1 In stock
Attributes
  • d1
    16.0
  • l1
    17.0
  • l2
    23.4
  • d2 +0.1|-0.0
    16.0
  • d3 max
    14.7
Quick View
View Product >
Expansion Sealing Plug 18.0 19.0 303 Stainless Steel

20250782


Stock Levels
In production
Attributes
  • d1
    18.0
  • l1
    19.0
  • l2
    26.4
  • d2 +0.1|-0.0
    18.0
  • d3 max
    16.7
Quick View
View Product >
Expansion Sealing Plug 18.0 19.0 Aluminium

20250805


Stock Levels
In production
Attributes
  • d1
    18.0
  • l1
    19.0
  • l2
    26.4
  • d2 +0.1|-0.0
    18.0
  • d3 max
    16.7
Quick View
View Product >
Expansion Sealing Plug 22.0 25.0 303 Stainless Steel

20250874


Stock Levels
In production
Attributes
  • d1
    22.0
  • l1
    25.0
  • l2
    34.0
  • d2 +0.1|-0.0
    22.0
  • d3 max
    20.7
Quick View
View Product >
Expansion Sealing Plug 20.0 22.0 Zinc Plated Steel

20250867


Stock Levels
95 In stock
Attributes
  • d1
    20.0
  • l1
    22.0
  • l2
    30.1
  • d2 +0.1|-0.0
    20.0
  • d3 max
    18.7
Quick View
View Product >
Expansion Sealing Plug 22.0 25.0 Aluminium

20250904


Stock Levels
In production
Attributes
  • d1
    22.0
  • l1
    25.0
  • l2
    34.0
  • d2 +0.1|-0.0
    22.0
  • d3 max
    20.7
Quick View
View Product >
Expansion Sealing Plug 6.0 6.5 Zinc Plated Steel

20250416


Stock Levels
17273 In stock
Attributes
  • d1
    6.0
  • l1
    6.5
  • l2
    8.7
  • d2 +0.1|-0.0
    6.0
  • d3 max
    5.3
Quick View
View Product >
Expansion Sealing Plug 7.0 7.5 Aluminium

20250454


Stock Levels
103 In stock
Attributes
  • d1
    7.0
  • l1
    7.5
  • l2
    10.2
  • d2 +0.1|-0.0
    7.0
  • d3 max
    6.4
Quick View
View Product >
Expansion Sealing Plug 3.0 3.6 Zinc Plated Steel

20250287


Stock Levels
1024 In stock
Attributes
  • d1
    3.0
  • l1
    3.6
  • l2
    4.6
  • d2 +0.1|-0.0
    3.0
  • d3 max
    2.2
Quick View
View Product >
Expansion Sealing Plug 5.0 5.5 303 Stainless Steel

20250331


Stock Levels
286 In stock
Attributes
  • d1
    5.0
  • l1
    5.5
  • l2
    7.1
  • d2 +0.1|-0.0
    5.0
  • d3 max
    4.3
Quick View
View Product >
Expansion Sealing Plug 6.0 6.5 Aluminium

20250409


Stock Levels
98 In stock
Attributes
  • d1
    6.0
  • l1
    6.5
  • l2
    8.7
  • d2 +0.1|-0.0
    6.0
  • d3 max
    5.3
Quick View
View Product >
Expansion Sealing Plug 8.0 8.5 Aluminium

20250508


Stock Levels
In production
Attributes
  • d1
    8.0
  • l1
    8.5
  • l2
    11.6
  • d2 +0.1|-0.0
    8.0
  • d3 max
    7.4
Quick View
View Product >
Expansion Sealing Plug 8.0 8.5 Zinc Plated Steel

20250515


Stock Levels
In production
Attributes
  • d1
    8.0
  • l1
    8.5
  • l2
    11.6
  • d2 +0.1|-0.0
    8.0
  • d3 max
    7.4
Quick View
View Product >
Expansion Sealing Plug 10.0 11.0 303 Stainless Steel

20250584


Stock Levels
In production
Attributes
  • d1
    10.0
  • l1
    11.0
  • l2
    15.2
  • d2 +0.1|-0.0
    10.0
  • d3 max
    9.4
Quick View
View Product >
Expansion Sealing Plug 10.0 11.0 Zinc Plated Steel

20250614


Stock Levels
342 In stock
Attributes
  • d1
    10.0
  • l1
    11.0
  • l2
    15.2
  • d2 +0.1|-0.0
    10.0
  • d3 max
    9.4
Quick View
View Product >
Expansion Sealing Plug 12.0 13.0 Aluminium

20250652


Stock Levels
90 In stock
Attributes
  • d1
    12.0
  • l1
    13.0
  • l2
    17.9
  • d2 +0.1|-0.0
    12.0
  • d3 max
    10.6
Quick View
View Product >
Expansion Sealing Plug 16.0 17.0 303 Stainless Steel

20250720


Stock Levels
499 In stock
Attributes
  • d1
    16.0
  • l1
    17.0
  • l2
    23.4
  • d2 +0.1|-0.0
    16.0
  • d3 max
    14.7
Quick View
View Product >
Expansion Sealing Plug 14.0 15.0 Zinc Plated Steel

20250713


Stock Levels
48 In stock
Attributes
  • d1
    14.0
  • l1
    15.0
  • l2
    20.6
  • d2 +0.1|-0.0
    14.0
  • d3 max
    12.7
Quick View
View Product >
Expansion Sealing Plug 18.0 19.0 303 Stainless Steel

20250775


Stock Levels
In production
Attributes
  • d1
    18.0
  • l1
    19.0
  • l2
    26.4
  • d2 +0.1|-0.0
    18.0
  • d3 max
    16.7
Quick View
View Product >
Expansion Sealing Plug 20.0 22.0 Aluminium

20250850


Stock Levels
In production
Attributes
  • d1
    20.0
  • l1
    22.0
  • l2
    30.1
  • d2 +0.1|-0.0
    20.0
  • d3 max
    18.7
Quick View
View Product >
Expansion Sealing Plug 22.0 25.0 Zinc Plated Steel

20250911


Stock Levels
17 In stock
Attributes
  • d1
    22.0
  • l1
    25.0
  • l2
    34.0
  • d2 +0.1|-0.0
    22.0
  • d3 max
    20.7
Quick View
View Product >
Expansion Sealing Plug 3.0 3.6 316 Stainless Steel

20250232


Stock Levels
In production
Attributes
  • d1
    3.0
  • l1
    3.6
  • l2
    4.6
  • d2 +0.1|-0.0
    3.0
  • d3 max
    2.2
Quick View
View Product >
Expansion Sealing Plug 18.0 19.0 316 Stainless Steel

20250799


Stock Levels
In production
Attributes
  • d1
    18.0
  • l1
    19.0
  • l2
    26.4
  • d2 +0.1|-0.0
    18.0
  • d3 max
    16.7
Quick View
View Product >
Expansion Sealing Plug 22.0 25.0 316 Stainless Steel

20250898


Stock Levels
In production
Attributes
  • d1
    22.0
  • l1
    25.0
  • l2
    34.0
  • d2 +0.1|-0.0
    22.0
  • d3 max
    20.7
Quick View
View Product >
Expansion Sealing Plug 7.0 7.5 316 Stainless Steel

20250447


Stock Levels
In production
Attributes
  • d1
    7.0
  • l1
    7.5
  • l2
    10.2
  • d2 +0.1|-0.0
    7.0
  • d3 max
    6.4
Quick View
View Product >
Expansion Sealing Plug 8.0 8.5 316 Stainless Steel

20250492


Stock Levels
In production
Attributes
  • d1
    8.0
  • l1
    8.5
  • l2
    11.6
  • d2 +0.1|-0.0
    8.0
  • d3 max
    7.4
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Expansion Sealing Plug 9.0 10.0 316 Stainless Steel

20250546


Stock Levels
In production
Attributes
  • d1
    9.0
  • l1
    10.0
  • l2
    13.6
  • d2 +0.1|-0.0
    9.0
  • d3 max
    8.4
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Expansion Sealing Plug 14.0 15.0 316 Stainless Steel

20250690


Stock Levels
In production
Attributes
  • d1
    14.0
  • l1
    15.0
  • l2
    20.6
  • d2 +0.1|-0.0
    14.0
  • d3 max
    12.7
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Expansion Sealing Plug 16.0 17.0 316 Stainless Steel

20250744


Stock Levels
In production
Attributes
  • d1
    16.0
  • l1
    17.0
  • l2
    23.4
  • d2 +0.1|-0.0
    16.0
  • d3 max
    14.7
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Expansion Sealing Plug 10.0 11.0 316 Stainless Steel

20250591


Stock Levels
In production
Attributes
  • d1
    10.0
  • l1
    11.0
  • l2
    15.2
  • d2 +0.1|-0.0
    10.0
  • d3 max
    9.4
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Expansion Sealing Plug 12.0 13.0 316 Stainless Steel

20250645


Stock Levels
In production
Attributes
  • d1
    12.0
  • l1
    13.0
  • l2
    17.9
  • d2 +0.1|-0.0
    12.0
  • d3 max
    10.6
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Expansion Sealing Plug 4.0 4.0 316 Stainless Steel

20250256


Stock Levels
In production
Attributes
  • d1
    4.0
  • l1
    4.0
  • l2
    5.2
  • d2 +0.1|-0.0
    4.0
  • d3 max
    3.3
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Expansion Sealing Plug 6.0 6.5 316 Stainless Steel

20250393


Stock Levels
In production
Attributes
  • d1
    6.0
  • l1
    6.5
  • l2
    8.7
  • d2 +0.1|-0.0
    6.0
  • d3 max
    5.3
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Expansion Sealing Plug 20.0 22.0 316 Stainless Steel

20250843


Stock Levels
In production
Attributes
  • d1
    20.0
  • l1
    22.0
  • l2
    30.1
  • d2 +0.1|-0.0
    20.0
  • d3 max
    18.7
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