Nord-lock washers - Dimensions for Washers

Washer size
Bolt Size
NL8
M8
NL10
M10
NL12
M12
NL16
M16
NL20
M20
NL22
M22
NL24
M24
NL27
M27
NL30
M30
NL36
M26
Internal diameter
(id)
8.7
(+/-) 0.1
10.7
(+/-) 0.5
13.0
(+/-) 0.5
17.0
(+/-) 0.5
21.4
(+/-) 0.5
23.4
(+/-) 0.5
25.3
(+/-) 0.5
28.4
(+/-) 0.5
31.4
(+/-) 0.5
37.4
(+/-) 0.5
Outside diameter
(od)
13.5
(+/-) 0.2
16.6
(+/-) 0.2
19.5
(+/-) 0.2
25.4
(+/-) 0.2
30.7
(+/-) 0.2
34.5
(+/-) 0.2
39.0
(+/-) 0.2
42.0
(+/-) 0.2
47.0
(+/-) 0/-2
55.0
(+/-) 0/-2
Thickness
(t)
2.5
(+/-) 0.25
2.5
(+/-) 0.25
2.5
(+/-) 0.25
3.4
(+/-) 0.25
3.4
(+/-) 0.25
3.4
(+/-) 0.25
3.4
(+/-) 0.25
5.8
(+/-) 0.25
5.8
(+/-) 0.25
5.8
(+/-) 0.25
Dimensions in millimetres

For more information, please visit the official Nord-Lock website .

Whilst the information is provided in good faith, Andrews Fasteners Ltd are not under any responsibility or liability in respect of errors or information that was found to be incorrect or for any reliance the user may place on it.

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