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Cap Head Seal Screws

In production

This range of sealing screws has a cap head with a torx socket drive, incorporating an O-ring that is compressed-squeezed between the head, the socket drive and the mating surface to complete the seal. Manufactured from stainless steel, which provides good corrosion resistance and is slightly magnetic.

Seal screws are a type of fastener designed with an o-ring to provide secure bi-directional protection against contaminates such as gases and fluids in various applications, minimising the risk of damage to sensitive equipment. They prevent the entry of water, dust, or other contaminants, ensuring a secure, reliable connection.

Seal screws are used in threaded and non-threaded holes in applications such as cabinets or used in the automotive and electric industries.

Please note: Our seal screws are designed for use in applications where sealing properties are required. It could be confused with standard fasteners, these do not require sealing properties and with an O-ring you will not get a sealing property like you get with seal screws and may damage the ring. Clearance holes are recommended for optimal sealing performance (see measurements below). Clearance hole depth is 2-3 times the thread pitch; threads are metric coarse pitch.

  • Designed with an o-ring to provide secure bi-directional protection against contaminates, such as gases and fluids, in various applications
  • Prevents the entry of water, dust or other contaminants, ensuring a secure and reliable connection.
  • Used in threaded and non-threaded holes, in applications such as cabinets, or used in the automotive and electric industries.
Material: 303 Stainless Steel Series Code: SRP0173.TX

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44 results
Product SKUs information
Item Code Price range Availability d2 max h1 max Drive Torx Drive Type d1 l1 d3 ±0.05 View
£ 2.8162 - £ 4.3327 Request the lead time here
13.0
8.0
TX 45
Torx Drive
M8
16.0
8.5
£ 4.3026 - £ 6.6194 Request the lead time here
16.0
10.0
TX 50
Torx Drive
M10
40.0
10.6
£ 3.6377 - £ 5.5964 Request the lead time here
16.0
10.0
TX 50
Torx Drive
M10
20.0
10.6
£ 1.897 - £ 2.9185 Request the lead time here
8.5
5.0
TX 25
Torx Drive
M5
12.0
5.6
£ 2.2686 - £ 3.4902 Request the lead time here
10.0
6.0
TX 30
Torx Drive
M6
16.0
6.8
£ 2.9336 - £ 4.5132 Request the lead time here
13.0
8.0
TX 45
Torx Drive
M8
20.0
8.5
£ 1.6819 - £ 2.5876 Request the lead time here
7.0
4.0
TX 20
Torx Drive
M4
20.0
4.5
£ 0.9974 - £ 1.5345 Request the lead time here
3.8
2.0
TX 6
Torx Drive
M2
4.0
2.35
£ 3.7941 - £ 5.8371 Request the lead time here
16.0
10.0
TX 50
Torx Drive
M10
25.0
10.6
£ 4.7348 - £ 7.2844 Request the lead time here
18.0
12.0
TX 55
Torx Drive
M12
50.0
12.85
£ 4.7133 - £ 7.2513 Request the lead time here
18.0
12.0
TX 55
Torx Drive
M12
20.0
12.85
£ 4.7348 - £ 7.2844 Request the lead time here
18.0
12.0
TX 55
Torx Drive
M12
25.0
12.85
£ 1.545 - £ 2.3769 Request the lead time here
7.0
4.0
TX 20
Torx Drive
M4
8.0
4.5
£ 1.8188 - £ 2.7982 Request the lead time here
8.5
5.0
TX 25
Torx Drive
M5
8.0
5.6
£ 1.5646 - £ 2.407 Request the lead time here
7.0
4.0
TX 20
Torx Drive
M4
10.0
4.5
£ 3.9506 - £ 6.0778 Request the lead time here
16.0
10.0
TX 50
Torx Drive
M10
30.0
10.6
£ 1.3299 - £ 2.046 Request the lead time here
4.5
2.5
TX 8
Torx Drive
M2.5
8.0
2.75
£ 1.4863 - £ 2.2867 Request the lead time here
5.5
3.0
TX 10
Torx Drive
M3
12.0
3.6
£ 2.7576 - £ 4.2424 Request the lead time here
13.0
8.0
TX 45
Torx Drive
M8
12.0
8.5
£ 1.545 - £ 2.3769 Request the lead time here
7.0
4.0
TX 20
Torx Drive
M4
6.0
4.5
  • of 3
Cap Head Seal Screw M8 16.0 303 Stainless Steel

20228040

Price Range
£ 4.3327 - £ 2.8162

Stock Levels
Request the lead time here
Attributes
  • d1
    M8
  • l1
    16.0
  • h1 max
    8.0
  • d2 max
    13.0
  • d3 ±0.05
    8.5
Cap Head Seal Screw M10 40.0 303 Stainless Steel

20228125

Price Range
£ 6.6194 - £ 4.3026

Stock Levels
Request the lead time here
Attributes
  • d1
    M10
  • l1
    40.0
  • h1 max
    10.0
  • d2 max
    16.0
  • d3 ±0.05
    10.6
Cap Head Seal Screw M10 20.0 303 Stainless Steel

20228095

Price Range
£ 5.5964 - £ 3.6377

Stock Levels
Request the lead time here
Attributes
  • d1
    M10
  • l1
    20.0
  • h1 max
    10.0
  • d2 max
    16.0
  • d3 ±0.05
    10.6
Cap Head Seal Screw M5 12.0 303 Stainless Steel

20227951

Price Range
£ 2.9185 - £ 1.897

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1
    12.0
  • h1 max
    5.0
  • d2 max
    8.5
  • d3 ±0.05
    5.6
Cap Head Seal Screw M6 16.0 303 Stainless Steel

20227999

Price Range
£ 3.4902 - £ 2.2686

Stock Levels
Request the lead time here
Attributes
  • d1
    M6
  • l1
    16.0
  • h1 max
    6.0
  • d2 max
    10.0
  • d3 ±0.05
    6.8
Cap Head Seal Screw M8 20.0 303 Stainless Steel

20228057

Price Range
£ 4.5132 - £ 2.9336

Stock Levels
Request the lead time here
Attributes
  • d1
    M8
  • l1
    20.0
  • h1 max
    8.0
  • d2 max
    13.0
  • d3 ±0.05
    8.5
Cap Head Seal Screw M4 20.0 303 Stainless Steel

20227920

Price Range
£ 2.5876 - £ 1.6819

Stock Levels
Request the lead time here
Attributes
  • d1
    M4
  • l1
    20.0
  • h1 max
    4.0
  • d2 max
    7.0
  • d3 ±0.05
    4.5
Cap Head Seal Screw M2 4.0 303 Stainless Steel

20227753

Price Range
£ 1.5345 - £ 0.9974

Stock Levels
Request the lead time here
Attributes
  • d1
    M2
  • l1
    4.0
  • h1 max
    2.0
  • d2 max
    3.8
  • d3 ±0.05
    2.35
Cap Head Seal Screw M10 25.0 303 Stainless Steel

20228101

Price Range
£ 5.8371 - £ 3.7941

Stock Levels
Request the lead time here
Attributes
  • d1
    M10
  • l1
    25.0
  • h1 max
    10.0
  • d2 max
    16.0
  • d3 ±0.05
    10.6
Cap Head Seal Screw M12 50.0 303 Stainless Steel

20228170

Price Range
£ 7.2844 - £ 4.7348

Stock Levels
Request the lead time here
Attributes
  • d1
    M12
  • l1
    50.0
  • h1 max
    12.0
  • d2 max
    18.0
  • d3 ±0.05
    12.85
Cap Head Seal Screw M12 20.0 303 Stainless Steel

20228132

Price Range
£ 7.2513 - £ 4.7133

Stock Levels
Request the lead time here
Attributes
  • d1
    M12
  • l1
    20.0
  • h1 max
    12.0
  • d2 max
    18.0
  • d3 ±0.05
    12.85
Cap Head Seal Screw M12 25.0 303 Stainless Steel

20228149

Price Range
£ 7.2844 - £ 4.7348

Stock Levels
Request the lead time here
Attributes
  • d1
    M12
  • l1
    25.0
  • h1 max
    12.0
  • d2 max
    18.0
  • d3 ±0.05
    12.85
Cap Head Seal Screw M4 8.0 303 Stainless Steel

20227883

Price Range
£ 2.3769 - £ 1.545

Stock Levels
Request the lead time here
Attributes
  • d1
    M4
  • l1
    8.0
  • h1 max
    4.0
  • d2 max
    7.0
  • d3 ±0.05
    4.5
Cap Head Seal Screw M5 8.0 303 Stainless Steel

20227937

Price Range
£ 2.7982 - £ 1.8188

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1
    8.0
  • h1 max
    5.0
  • d2 max
    8.5
  • d3 ±0.05
    5.6
Cap Head Seal Screw M4 10.0 303 Stainless Steel

20227890

Price Range
£ 2.407 - £ 1.5646

Stock Levels
Request the lead time here
Attributes
  • d1
    M4
  • l1
    10.0
  • h1 max
    4.0
  • d2 max
    7.0
  • d3 ±0.05
    4.5
Cap Head Seal Screw M10 30.0 303 Stainless Steel

20228118

Price Range
£ 6.0778 - £ 3.9506

Stock Levels
Request the lead time here
Attributes
  • d1
    M10
  • l1
    30.0
  • h1 max
    10.0
  • d2 max
    16.0
  • d3 ±0.05
    10.6
Cap Head Seal Screw M2.5 8.0 303 Stainless Steel

20227807

Price Range
£ 2.046 - £ 1.3299

Stock Levels
Request the lead time here
Attributes
  • d1
    M2.5
  • l1
    8.0
  • h1 max
    2.5
  • d2 max
    4.5
  • d3 ±0.05
    2.75
Cap Head Seal Screw M3 12.0 303 Stainless Steel

20227852

Price Range
£ 2.2867 - £ 1.4863

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1
    12.0
  • h1 max
    3.0
  • d2 max
    5.5
  • d3 ±0.05
    3.6
Cap Head Seal Screw M8 12.0 303 Stainless Steel

20228033

Price Range
£ 4.2424 - £ 2.7576

Stock Levels
Request the lead time here
Attributes
  • d1
    M8
  • l1
    12.0
  • h1 max
    8.0
  • d2 max
    13.0
  • d3 ±0.05
    8.5
Cap Head Seal Screw M4 6.0 303 Stainless Steel

20227876

Price Range
£ 2.3769 - £ 1.545

Stock Levels
Request the lead time here
Attributes
  • d1
    M4
  • l1
    6.0
  • h1 max
    4.0
  • d2 max
    7.0
  • d3 ±0.05
    4.5