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Anu-Lok Cap Head Seal Screws

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Anu-Lok Cap Head Seal Screws have a cap head design for better torque control and feature a built-in sealing mechanism that is designed for holding a gas-tight seal. Made of stainless steel, which has high corrosion resistance and is somewhat magnetic.

These screws utilize Anu-Lok 180 (AnuLok), a reusable nylon patch that works like a nylon nut. During installation, the nylon patch contracts to fill the gap within the threads, creating a holding mechanism that prevents the screw from detaching due to vibrations or mechanical stress.

With a hexagonal socket head, they can be easily tightened or loosened using an hexagonal wrench or key.

  • It is reusable.
  • Can tolerate temperatures ranging from -100C up to +260C.
  • They are ideal for various applications including electronics, equipment and for automotive use.
  • Please note: Clearance holes recommended for maximum sealing.
Material: 303 Stainless with thread lock Series Code: SRP0173

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Product SKUs information
Essentra Part Number Price range Availability d2 max h1 max A/F d1 l1 d3 ±0.05 View
R 101,4253 - R 144,8337 Request the lead time here
7.0
4.0
3.0
M4
8.0
4.50
R 109,7731 - R 156,938 Request the lead time here
8.5
5.0
4.0
M5
8.0
5.60
R 94,5384 - R 135,0251 Request the lead time here
5.5
3.0
2.5
M3
6.0
3.60
R 98,921 - R 141,2859 Request the lead time here
5.5
3.0
2.5
M3
20.0
3.60
R 110,3992 - R 157,7728 Request the lead time here
8.5
5.0
4.0
M5
10.0
5.60
R 199,929 - R 285,4936 Request the lead time here
24.0
16.0
14.0
M16
30.0
17.50
R 121,0426 - R 172,7988 Request the lead time here
13.0
8.0
6.0
M8
12.0
8.50
R 95,7906 - R 136,6947 Request the lead time here
5.5
3.0
2.5
M3
10.0
3.60
R 158,3989 - R 226,2245 Request the lead time here
18.0
12.0
10.0
M12
50.0
12.85
R 184,903 - R 263,9981 Request the lead time here
18.0
12.0
10.0
M12
25.0
12.85
R 122,7122 - R 175,3031 Request the lead time here
13.0
8.0
6.0
M8
16.0
8.50
R 100,5906 - R 143,7903 Request the lead time here
7.0
4.0
3.0
M4
6.0
4.50
R 184,903 - R 263,9981 Request the lead time here
18.0
12.0
10.0
M12
30.0
12.85
R 184,903 - R 263,9981 Request the lead time here
18.0
12.0
10.0
M12
20.0
12.85
R 128,3469 - R 183,2335 Request the lead time here
13.0
8.0
6.0
M8
25.0
8.50
R 101,8427 - R 145,4598 Request the lead time here
7.0
4.0
3.0
M4
10.0
4.50
R 115,4079 - R 164,8684 Request the lead time here
8.5
5.0
4.0
M5
20.0
5.60
R 125,2165 - R 178,8509 Request the lead time here
13.0
8.0
6.0
M8
20.0
8.50
R 96,4167 - R 137,7381 Request the lead time here
5.5
3.0
2.5
M3
10.0
3.60
R 111,6514 - R 159,4423 Request the lead time here
8.5
5.0
4.0
M5
12.0
5.60
    • of 2
Seal Screw M4 8.0 4.0 303 Stainless with thread lock

20759445

Price Range
R 144,8337 - R 101,4253

Stock Levels
Request the lead time here
Attributes
  • d1
    M4
  • l1
    8.0
  • h1 max
    4.0
  • d2 max
    7.0
  • A/F
    3.0
Quick View
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Seal Screw M5 8.0 5.0 303 Stainless with thread lock

20759490

Price Range
R 156,938 - R 109,7731

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1
    8.0
  • h1 max
    5.0
  • d2 max
    8.5
  • A/F
    4.0
Quick View
View Product >
Seal Screw M3 6.0 3.0 303 Stainless with thread lock

20759384

Price Range
R 135,0251 - R 94,5384

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1
    6.0
  • h1 max
    3.0
  • d2 max
    5.5
  • A/F
    2.5
Quick View
View Product >
Seal Screw M3 20.0 3.0 303 Stainless with thread lock

20759421

Price Range
R 141,2859 - R 98,921

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1
    20.0
  • h1 max
    3.0
  • d2 max
    5.5
  • A/F
    2.5
Quick View
View Product >
Seal Screw M5 10.0 5.0 303 Stainless with thread lock

20759506

Price Range
R 157,7728 - R 110,3992

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1
    10.0
  • h1 max
    5.0
  • d2 max
    8.5
  • A/F
    4.0
Quick View
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Seal Screw M16 30.0 16.0 303 Stainless with thread lock

20759759

Price Range
R 285,4936 - R 199,929

Stock Levels
Request the lead time here
Attributes
  • d1
    M16
  • l1
    30.0
  • h1 max
    16.0
  • d2 max
    24.0
  • A/F
    14.0
Quick View
View Product >
Seal Screw M8 12.0 8.0 303 Stainless with thread lock

20759599

Price Range
R 172,7988 - R 121,0426

Stock Levels
Request the lead time here
Attributes
  • d1
    M8
  • l1
    12.0
  • h1 max
    8.0
  • d2 max
    13.0
  • A/F
    6.0
Quick View
View Product >
Seal Screw M3 10.0 3.0 303 Stainless with thread lock

20759407

Price Range
R 136,6947 - R 95,7906

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1
    10.0
  • h1 max
    3.0
  • d2 max
    5.5
  • A/F
    2.5
Quick View
View Product >
Seal Screw M12 50.0 12.0 303 Stainless with thread lock

20759735

Price Range
R 226,2245 - R 158,3989

Stock Levels
Request the lead time here
Attributes
  • d1
    M12
  • l1
    50.0
  • h1 max
    12.0
  • d2 max
    18.0
  • A/F
    10.0
Quick View
View Product >
Seal Screw M12 25.0 12.0 303 Stainless with thread lock

20759704

Price Range
R 263,9981 - R 184,903

Stock Levels
Request the lead time here
Attributes
  • d1
    M12
  • l1
    25.0
  • h1 max
    12.0
  • d2 max
    18.0
  • A/F
    10.0
Quick View
View Product >
Seal Screw M8 16.0 8.0 303 Stainless with thread lock

20759605

Price Range
R 175,3031 - R 122,7122

Stock Levels
Request the lead time here
Attributes
  • d1
    M8
  • l1
    16.0
  • h1 max
    8.0
  • d2 max
    13.0
  • A/F
    6.0
Quick View
View Product >
Seal Screw M4 6.0 4.0 303 Stainless with thread lock

20759438

Price Range
R 143,7903 - R 100,5906

Stock Levels
Request the lead time here
Attributes
  • d1
    M4
  • l1
    6.0
  • h1 max
    4.0
  • d2 max
    7.0
  • A/F
    3.0
Quick View
View Product >
Seal Screw M12 30.0 12.0 303 Stainless with thread lock

20759711

Price Range
R 263,9981 - R 184,903

Stock Levels
Request the lead time here
Attributes
  • d1
    M12
  • l1
    30.0
  • h1 max
    12.0
  • d2 max
    18.0
  • A/F
    10.0
Quick View
View Product >
Seal Screw M12 20.0 12.0 303 Stainless with thread lock

20759698

Price Range
R 263,9981 - R 184,903

Stock Levels
Request the lead time here
Attributes
  • d1
    M12
  • l1
    20.0
  • h1 max
    12.0
  • d2 max
    18.0
  • A/F
    10.0
Quick View
View Product >
Seal Screw M8 25.0 8.0 303 Stainless with thread lock

20759629

Price Range
R 183,2335 - R 128,3469

Stock Levels
Request the lead time here
Attributes
  • d1
    M8
  • l1
    25.0
  • h1 max
    8.0
  • d2 max
    13.0
  • A/F
    6.0
Quick View
View Product >
Seal Screw M4 10.0 4.0 303 Stainless with thread lock

20759452

Price Range
R 145,4598 - R 101,8427

Stock Levels
Request the lead time here
Attributes
  • d1
    M4
  • l1
    10.0
  • h1 max
    4.0
  • d2 max
    7.0
  • A/F
    3.0
Quick View
View Product >
Seal Screw M5 20.0 5.0 303 Stainless with thread lock

20759537

Price Range
R 164,8684 - R 115,4079

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1
    20.0
  • h1 max
    5.0
  • d2 max
    8.5
  • A/F
    4.0
Quick View
View Product >
Seal Screw M8 20.0 8.0 303 Stainless with thread lock

20759612

Price Range
R 178,8509 - R 125,2165

Stock Levels
Request the lead time here
Attributes
  • d1
    M8
  • l1
    20.0
  • h1 max
    8.0
  • d2 max
    13.0
  • A/F
    6.0
Quick View
View Product >
Seal Screw M3 10.0 3.0 303 Stainless with thread lock

20759414

Price Range
R 137,7381 - R 96,4167

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1
    10.0
  • h1 max
    3.0
  • d2 max
    5.5
  • A/F
    2.5
Quick View
View Product >
Seal Screw M5 12.0 5.0 303 Stainless with thread lock

20759513

Price Range
R 159,4423 - R 111,6514

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1
    12.0
  • h1 max
    5.0
  • d2 max
    8.5
  • A/F
    4.0
Quick View
View Product >