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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
£ 1.545 - £ 2.3769 Request the lead time here
7.0
4.0
TX 20
Torx Drive
M4
8.0
4.5
£ 1.3299 - £ 2.046 Request the lead time here
4.5
2.5
TX 8
Torx Drive
M2.5
12.0
2.75
£ 1.9948 - £ 3.069 Request the lead time here
8.5
5.0
TX 25
Torx Drive
M5
20.0
5.6
£ 1.5646 - £ 2.407 Request the lead time here
7.0
4.0
TX 20
Torx Drive
M4
10.0
4.5
£ 0.9974 - £ 1.5345 Request the lead time here
3.8
2.0
TX 6
Torx Drive
M2
4.0
2.35
£ 3.0509 - £ 4.6938 Request the lead time here
13.0
8.0
TX 45
Torx Drive
M8
25.0
8.5
£ 1.0169 - £ 1.5646 Request the lead time here
3.8
2.0
TX 6
Torx Drive
M2
8.0
2.35
£ 1.0756 - £ 1.6548 Request the lead time here
4.5
2.5
TX 8
Torx Drive
M2.5
6.0
2.75
£ 1.3299 - £ 2.046 Request the lead time here
4.5
2.5
TX 8
Torx Drive
M2.5
8.0
2.75
£ 1.9557 - £ 3.0088 Request the lead time here
8.5
5.0
TX 25
Torx Drive
M5
16.0
5.6
£ 3.9506 - £ 6.0778 Request the lead time here
16.0
10.0
TX 50
Torx Drive
M10
30.0
10.6
£ 2.2686 - £ 3.4902 Request the lead time here
10.0
6.0
TX 30
Torx Drive
M6
16.0
6.8
£ 1.6037 - £ 2.4672 Request the lead time here
5.5
3.0
TX 10
Torx Drive
M3
20.0
3.6
£ 1.1343 - £ 1.7451 Request the lead time here
3.8
2.0
TX 6
Torx Drive
M2
12.0
2.35
£ 1.4472 - £ 2.2265 Request the lead time here
5.5
3.0
TX 10
Torx Drive
M3
6.0
3.6
£ 4.7348 - £ 7.2844 Request the lead time here
18.0
12.0
TX 55
Torx Drive
M12
40.0
12.85
£ 1.6819 - £ 2.5876 Request the lead time here
7.0
4.0
TX 20
Torx Drive
M4
20.0
4.5
£ 1.545 - £ 2.3769 Request the lead time here
7.0
4.0
TX 20
Torx Drive
M4
6.0
4.5
£ 1.5059 - £ 2.3168 Request the lead time here
5.5
3.0
TX 10
Torx Drive
M3
10.0
3.6
£ 1.4863 - £ 2.2867 Request the lead time here
5.5
3.0
TX 10
Torx Drive
M3
12.0
3.6
  • of 3
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 M2.5 12.0 303 Stainless Steel

20227814

Price Range
£ 2.046 - £ 1.3299

Stock Levels
Request the lead time here
Attributes
  • d1
    M2.5
  • l1
    12.0
  • h1 max
    2.5
  • d2 max
    4.5
  • d3 ±0.05
    2.75
Cap Head Seal Screw M5 20.0 303 Stainless Steel

20227975

Price Range
£ 3.069 - £ 1.9948

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1
    20.0
  • 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 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 M8 25.0 303 Stainless Steel

20228064

Price Range
£ 4.6938 - £ 3.0509

Stock Levels
Request the lead time here
Attributes
  • d1
    M8
  • l1
    25.0
  • h1 max
    8.0
  • d2 max
    13.0
  • d3 ±0.05
    8.5
Cap Head Seal Screw M2 8.0 303 Stainless Steel

20227760

Price Range
£ 1.5646 - £ 1.0169

Stock Levels
Request the lead time here
Attributes
  • d1
    M2
  • l1
    8.0
  • h1 max
    2.0
  • d2 max
    3.8
  • d3 ±0.05
    2.35
Cap Head Seal Screw M2.5 6.0 303 Stainless Steel

20227791

Price Range
£ 1.6548 - £ 1.0756

Stock Levels
Request the lead time here
Attributes
  • d1
    M2.5
  • l1
    6.0
  • h1 max
    2.5
  • d2 max
    4.5
  • d3 ±0.05
    2.75
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 M5 16.0 303 Stainless Steel

20227968

Price Range
£ 3.0088 - £ 1.9557

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1
    16.0
  • h1 max
    5.0
  • d2 max
    8.5
  • d3 ±0.05
    5.6
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 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 M3 20.0 303 Stainless Steel

20227869

Price Range
£ 2.4672 - £ 1.6037

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1
    20.0
  • h1 max
    3.0
  • d2 max
    5.5
  • d3 ±0.05
    3.6
Cap Head Seal Screw M2 12.0 303 Stainless Steel

20227784

Price Range
£ 1.7451 - £ 1.1343

Stock Levels
Request the lead time here
Attributes
  • d1
    M2
  • l1
    12.0
  • h1 max
    2.0
  • d2 max
    3.8
  • d3 ±0.05
    2.35
Cap Head Seal Screw M3 6.0 303 Stainless Steel

20227821

Price Range
£ 2.2265 - £ 1.4472

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1
    6.0
  • h1 max
    3.0
  • d2 max
    5.5
  • d3 ±0.05
    3.6
Cap Head Seal Screw M12 40.0 303 Stainless Steel

20228163

Price Range
£ 7.2844 - £ 4.7348

Stock Levels
Request the lead time here
Attributes
  • d1
    M12
  • l1
    40.0
  • h1 max
    12.0
  • d2 max
    18.0
  • d3 ±0.05
    12.85
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 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
Cap Head Seal Screw M3 10.0 303 Stainless Steel

20227845

Price Range
£ 2.3168 - £ 1.5059

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1
    10.0
  • h1 max
    3.0
  • d2 max
    5.5
  • d3 ±0.05
    3.6
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