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Anu-Lok Cap Head Captive Screws

In production

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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78 results
Product SKUs information
Essentra Part Number Price range Availability d1 l2 025 A/F H1 max d3 max d2 a012 View
R 256,5061 - R 366,5589 Request the lead time here
M16
20.0
14.0
16.0
24.0
12.0
R 82,1671 - R 117,2903 Request the lead time here
M8
10.0
6.0
8.0
13.0
6.0
R 78,7612 - R 112,6072 Request the lead time here
M6
7.5
5.0
6.0
10.0
4.2
R 63,4347 - R 90,4689 Request the lead time here
M2.5
3.0
2.0
2.5
4.5
1.8
R 67,6921 - R 96,6421 Request the lead time here
M5
7.5
4.0
5.0
8.5
3.7
R 72,588 - R 103,6668 Request the lead time here
M6
7.5
5.0
6.0
10.0
4.2
R 142,1959 - R 203,0762 Request the lead time here
M10
12.5
8.0
10.0
16.0
7.5
R 150,2849 - R 214,571 Request the lead time here
M12
15.0
10.0
12.0
18.0
8.0
R 259,9119 - R 371,242 Request the lead time here
M20
25.0
19.0
20.0
30.0
16.0
R 66,4148 - R 94,7263 Request the lead time here
M3
4.5
2.5
3.0
5.5
2.0
R 70,0336 - R 100,048 Request the lead time here
M4
6.0
3.0
4.0
7.0
2.8
R 80,2513 - R 114,523 Request the lead time here
M5
7.5
4.0
5.0
8.5
3.7
R 70,0336 - R 100,048 Request the lead time here
M5
7.5
4.0
5.0
8.5
3.7
R 75,1424 - R 107,2855 Request the lead time here
M4
6.0
3.0
4.0
7.0
2.8
R 73,8652 - R 105,5826 Request the lead time here
M5
7.5
4.0
5.0
8.5
3.7
R 68,7564 - R 98,3451 Request the lead time here
M5
7.5
4.0
5.0
8.5
3.7
R 61,9446 - R 88,5531 Request the lead time here
M4
6.0
3.0
4.0
7.0
2.8
R 68,3307 - R 97,4936 Request the lead time here
M4
6.0
3.0
4.0
7.0
2.8
R 68,7564 - R 98,3451 Request the lead time here
M3
4.5
2.5
3.0
5.5
2.0
R 72,1623 - R 103,0282 Request the lead time here
M5
7.5
4.0
5.0
8.5
3.7
  • of 4
Captive Screw M16 16.0 80.0 303 Stainless with thread lock

20758585

Price Range
R 366,5589 - R 256,5061

Stock Levels
Request the lead time here
Attributes
  • d1
    M16
  • l1 025
    80.0
  • d2 a012
    12.0
  • d3 max
    24.0
  • d4 min
    17.5
Captive Screw M8 8.0 25.0 303 Stainless with thread lock

20758271

Price Range
R 117,2903 - R 82,1671

Stock Levels
Request the lead time here
Attributes
  • d1
    M8
  • l1 025
    25.0
  • d2 a012
    6.0
  • d3 max
    13.0
  • d4 min
    8.5
Captive Screw M6 6.0 40.0 303 Stainless with thread lock

20758219

Price Range
R 112,6072 - R 78,7612

Stock Levels
Request the lead time here
Attributes
  • d1
    M6
  • l1 025
    40.0
  • d2 a012
    4.2
  • d3 max
    10.0
  • d4 min
    6.5
Captive Screw M2.5 2.5 10.0 303 Stainless with thread lock

20757892

Price Range
R 90,4689 - R 63,4347

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
Captive Screw M5 5.0 12.0 303 Stainless with thread lock

20758073

Price Range
R 96,6421 - R 67,6921

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1 025
    12.0
  • d2 a012
    3.7
  • d3 max
    8.5
  • d4 min
    5.5
Captive Screw M6 6.0 25.0 303 Stainless with thread lock

20758189

Price Range
R 103,6668 - R 72,588

Stock Levels
Request the lead time here
Attributes
  • d1
    M6
  • l1 025
    25.0
  • d2 a012
    4.2
  • d3 max
    10.0
  • d4 min
    6.5
Captive Screw M10 10.0 60.0 303 Stainless with thread lock

20758424

Price Range
R 203,0762 - R 142,1959

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
Captive Screw M12 12.0 45.0 303 Stainless with thread lock

20758486

Price Range
R 214,571 - R 150,2849

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
Captive Screw M20 20.0 40.0 303 Stainless with thread lock

20758608

Price Range
R 371,242 - R 259,9119

Stock Levels
Request the lead time here
Attributes
  • d1
    M20
  • l1 025
    40.0
  • d2 a012
    16.0
  • d3 max
    30.0
  • d4 min
    22.0
Captive Screw M3 3.0 25.0 303 Stainless with thread lock

20757960

Price Range
R 94,7263 - R 66,4148

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
Captive Screw M4 4.0 30.0 303 Stainless with thread lock

20758035

Price Range
R 100,048 - R 70,0336

Stock Levels
Request the lead time here
Attributes
  • d1
    M4
  • l1 025
    30.0
  • d2 a012
    2.8
  • d3 max
    7.0
  • d4 min
    4.5
Captive Screw M5 5.0 50.0 303 Stainless with thread lock

20758141

Price Range
R 114,523 - R 80,2513

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1 025
    50.0
  • d2 a012
    3.7
  • d3 max
    8.5
  • d4 min
    5.5
Captive Screw M5 5.0 20.0 303 Stainless with thread lock

20758097

Price Range
R 100,048 - R 70,0336

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1 025
    20.0
  • d2 a012
    3.7
  • d3 max
    8.5
  • d4 min
    5.5
Captive Screw M4 4.0 40.0 303 Stainless with thread lock

20758059

Price Range
R 107,2855 - R 75,1424

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
Captive Screw M5 5.0 30.0 303 Stainless with thread lock

20758110

Price Range
R 105,5826 - R 73,8652

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1 025
    30.0
  • d2 a012
    3.7
  • d3 max
    8.5
  • d4 min
    5.5
Captive Screw M5 5.0 16.0 303 Stainless with thread lock

20758080

Price Range
R 98,3451 - R 68,7564

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
Captive Screw M4 4.0 12.0 303 Stainless with thread lock

20757991

Price Range
R 88,5531 - R 61,9446

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
Captive Screw M4 4.0 25.0 303 Stainless with thread lock

20758028

Price Range
R 97,4936 - R 68,3307

Stock Levels
Request the lead time here
Attributes
  • d1
    M4
  • l1 025
    25.0
  • d2 a012
    2.8
  • d3 max
    7.0
  • d4 min
    4.5
Captive Screw M3 3.0 30.0 303 Stainless with thread lock

20757977

Price Range
R 98,3451 - R 68,7564

Stock Levels
Request the lead time here
Attributes
  • d1
    M3
  • l1 025
    30.0
  • d2 a012
    2.0
  • d3 max
    5.5
  • d4 min
    3.5
Captive Screw M5 5.0 25.0 303 Stainless with thread lock

20758103

Price Range
R 103,0282 - R 72,1623

Stock Levels
Request the lead time here
Attributes
  • d1
    M5
  • l1 025
    25.0
  • d2 a012
    3.7
  • d3 max
    8.5
  • d4 min
    5.5