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Anu-Lok Cap Head Captive Screws

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Anu-Lok Cap Head Captive Screws are intended to offer a secure and vibration-resistant attachment, while remaining permanently connected. Features a cap head design that enables simple torque application with tools like hexagonal keys. Anu-Lok 180 (AnuLok) is a reusable nylon patch that works like to a nylon nut. During installation, the nylon patch contracts to fill the gap within the threads.

The specialised retention mechanism prevents complete detachment from the assembly, due to vibration or mechanical stress, while allowing for repeated fastening and unfastening. This feature is useful in applications requiring maintenance or regular access. Applications include electronic enclosures, machinery guards and structural components.

Please note: These screws have a reduced diameter shank and should not be tightened to the recommended torque for an equivalent machine screw of size d1.

  • The screws captive nature complies with the Machinery Directive 2006/42/EC (equivalent to ISO 4762) that guarantees compliance with safety and regulatory standards, especially in industries where loose hardware may represent a risk.
Material: 303 Stainless with thread lock Series Code: SRP0154

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Product SKUs information
Essentra Part Number Price range Availability d1 l2 025 A/F H1 max d3 max d2 a012 View
R 162,7814 - R 232,4853 Request the lead time here
M16
20.0
14.0
16.0
24.0
12.0
R 162,7814 - R 232,4853 Request the lead time here
M12
15.0
10.0
12.0
18.0
8.0
R 182,8161 - R 261,2851 Request the lead time here
M12
15.0
10.0
12.0
18.0
8.0
R 385,4582 - R 550,5353 Request the lead time here
M20
25.0
19.0
20.0
30.0
16.0
R 147,3381 - R 210,3637 Request the lead time here
M12
15.0
10.0
12.0
18.0
8.0
R 139,4077 - R 199,0942 Request the lead time here
M10
12.5
8.0
10.0
16.0
7.5
R 62,1908 - R 88,695 Request the lead time here
M2.5
3.0
2.0
2.5
4.5
1.8
R 62,6082 - R 89,3211 Request the lead time here
M3
4.5
2.5
3.0
5.5
2.0
R 65,1125 - R 92,8689 Request the lead time here
M3
4.5
2.5
3.0
5.5
2.0
R 60,73 - R 86,8167 Request the lead time here
M4
6.0
3.0
4.0
7.0
2.8
R 62,1908 - R 88,695 Request the lead time here
M2.5
3.0
2.0
2.5
4.5
1.8
R 57,1822 - R 81,5994 Request the lead time here
M3
4.5
2.5
3.0
5.5
2.0
R 58,4343 - R 83,4776 Request the lead time here
M3
4.5
2.5
3.0
5.5
2.0
R 57,1822 - R 81,5994 Request the lead time here
M3
4.5
2.5
3.0
5.5
2.0
R 62,6082 - R 89,3211 Request the lead time here
M4
6.0
3.0
4.0
7.0
2.8
R 59,6865 - R 85,1472 Request the lead time here
M4
6.0
3.0
4.0
7.0
2.8
R 73,669 - R 105,1818 Request the lead time here
M4
6.0
3.0
4.0
7.0
2.8
R 67,4082 - R 96,4167 Request the lead time here
M5
7.5
4.0
5.0
8.5
3.7
    • of 4
Captive Screw M16 16.0 30.0 303 Stainless with thread lock

20758523

Price Range
R 232,4853 - R 162,7814

Stock Levels
Request the lead time here
Attributes
  • d1
    M16
  • l1 025
    30.0
  • d2 a012
    12.0
  • d3 max
    24.0
  • d4 min
    17.5
Quick View
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Captive Screw M12 12.0 60.0 303 Stainless with thread lock

20758509

Price Range
R 232,4853 - R 162,7814

Stock Levels
Request the lead time here
Attributes
  • d1
    M12
  • l1 025
    60.0
  • d2 a012
    8.0
  • d3 max
    18.0
  • d4 min
    13.2
Quick View
View Product >
Captive Screw M12 12.0 80.0 303 Stainless with thread lock

20758516

Price Range
R 261,2851 - R 182,8161

Stock Levels
Request the lead time here
Attributes
  • d1
    M12
  • l1 025
    80.0
  • d2 a012
    8.0
  • d3 max
    18.0
  • d4 min
    13.2
Quick View
View Product >
Captive Screw M20 20.0 100.0 303 Stainless with thread lock

20758639

Price Range
R 550,5353 - R 385,4582

Stock Levels
Request the lead time here
Attributes
  • d1
    M20
  • l1 025
    100.0
  • d2 a012
    16.0
  • d3 max
    30.0
  • d4 min
    22.0
Quick View
View Product >
Captive Screw M12 12.0 45.0 303 Stainless with thread lock

20758486

Price Range
R 210,3637 - R 147,3381

Stock Levels
Request the lead time here
Attributes
  • d1
    M12
  • l1 025
    45.0
  • d2 a012
    8.0
  • d3 max
    18.0
  • d4 min
    13.2
Quick View
View Product >
Captive Screw M10 10.0 60.0 303 Stainless with thread lock

20758424

Price Range
R 199,0942 - R 139,4077

Stock Levels
Request the lead time here
Attributes
  • d1
    M10
  • l1 025
    60.0
  • d2 a012
    7.5
  • d3 max
    16.0
  • d4 min
    10.6
Quick View
View Product >
Captive Screw M2.5 2.5 10.0 303 Stainless with thread lock

20757892

Price Range
R 88,695 - R 62,1908

Stock Levels
Request the lead time here
Attributes
  • d1
    M2.5
  • l1 025
    10.0
  • d2 a012
    1.8
  • d3 max
    4.5
  • d4 min
    2.8
Quick View
View Product >
Captive Screw M3 3.0 20.0 303 Stainless with thread lock

20757953

Price Range
R 89,3211 - R 62,6082

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1 025
    20.0
  • d2 a012
    2.0
  • d3 max
    5.5
  • d4 min
    3.5
Quick View
View Product >
Captive Screw M3 3.0 25.0 303 Stainless with thread lock

20757960

Price Range
R 92,8689 - R 65,1125

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1 025
    25.0
  • d2 a012
    2.0
  • d3 max
    5.5
  • d4 min
    3.5
Quick View
View Product >
Captive Screw M4 4.0 12.0 303 Stainless with thread lock

20757991

Price Range
R 86,8167 - R 60,73

Stock Levels
Request the lead time here
Attributes
  • d1
    M4
  • l1 025
    12.0
  • d2 a012
    2.8
  • d3 max
    7.0
  • d4 min
    4.5
Quick View
View Product >
Captive Screw M2.5 2.5 12.0 303 Stainless with thread lock

20757908

Price Range
R 88,695 - R 62,1908

Stock Levels
Request the lead time here
Attributes
  • d1
    M2.5
  • l1 025
    12.0
  • d2 a012
    1.8
  • d3 max
    4.5
  • d4 min
    2.8
Quick View
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Captive Screw M3 3.0 10.0 303 Stainless with thread lock

20757922

Price Range
R 81,5994 - R 57,1822

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1 025
    10.0
  • d2 a012
    2.0
  • d3 max
    5.5
  • d4 min
    3.5
Quick View
View Product >
Captive Screw M3 3.0 12.0 303 Stainless with thread lock

20757939

Price Range
R 83,4776 - R 58,4343

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1 025
    12.0
  • d2 a012
    2.0
  • d3 max
    5.5
  • d4 min
    3.5
Quick View
View Product >
Captive Screw M3 3.0 8.0 303 Stainless with thread lock

20757915

Price Range
R 81,5994 - R 57,1822

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1 025
    8.0
  • d2 a012
    2.0
  • d3 max
    5.5
  • d4 min
    3.5
Quick View
View Product >
Captive Screw M4 4.0 16.0 303 Stainless with thread lock

20758004

Price Range
R 89,3211 - R 62,6082

Stock Levels
Request the lead time here
Attributes
  • d1
    M4
  • l1 025
    16.0
  • d2 a012
    2.8
  • d3 max
    7.0
  • d4 min
    4.5
Quick View
View Product >
Captive Screw M4 4.0 10.0 303 Stainless with thread lock

20757984

Price Range
R 85,1472 - R 59,6865

Stock Levels
Request the lead time here
Attributes
  • d1
    M4
  • l1 025
    10.0
  • d2 a012
    2.8
  • d3 max
    7.0
  • d4 min
    4.5
Quick View
View Product >
Captive Screw M4 4.0 40.0 303 Stainless with thread lock

20758059

Price Range
R 105,1818 - R 73,669

Stock Levels
Request the lead time here
Attributes
  • d1
    M4
  • l1 025
    40.0
  • d2 a012
    2.8
  • d3 max
    7.0
  • d4 min
    4.5
Quick View
View Product >
Captive Screw M5 5.0 16.0 303 Stainless with thread lock

20758080

Price Range
R 96,4167 - R 67,4082

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1 025
    16.0
  • d2 a012
    3.7
  • d3 max
    8.5
  • d4 min
    5.5
Quick View
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