DIN EN 1664 Standard Dimensions for Product image - Prevailing torque type - All-metal hexagon nuts with flange
Self-locking hex flange nuts with non metallic insert
This standard (DIN EN 1664) defines characteristics of self-locking hex flange nuts (with all-metallic insert) with thread from M5 to M20, product grade A for thread up to M16 and product grade B for thread larger than M16 and with strength classes 8, 10 and 12.
This standard (DIN 1667 and equivalents) defines characteristics of hexagon nuts with flange (with all-metallic insert) and metric fine pitch thread with nominal thread diameter D from M8 to M20, product grade A for thread up to M16 and product grade B for thread larger than M16, with strength classes 6, 8 and 10.
Dimensional Drawing and Technical Diagrams
Key Dimensions and Technical Parameters
|
Dimensions in mm - source DIN EN 1664 |
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| Publication date: 02/1998 Supersedes DIN 6927: 11/1983 | |||||||
| d Thread size | P | m min | h min÷max | c min | dc max | s nom/max | e min |
|
M 5
|
0.8 |
4.7
|
5.7÷6.2
|
1
|
11.8 |
8
|
8.79
|
|
M 6
|
1 |
5.7
|
6.8÷7.3
|
1.1
|
14.2
|
10
|
11.05
|
|
M 8
|
1.25 |
7.6
|
8.74÷9.4
|
1.2
|
17.9
|
13
|
14.38
|
|
M 10
|
1.5 |
9.6
|
10.34÷11.4
|
1.5
|
21.8
|
16
|
17.77
|
|
M 12
|
1.75 |
11.6
|
12.57÷13.8
|
1.8
|
26
|
18
|
20.03
|
|
M 14
|
2 |
13.3
|
14.8÷15.9
|
2.1
|
29.9
|
21
|
23.36
|
|
M 16
|
2 |
15.3
|
17.2÷18.3
|
2.4
|
34.5
|
24
|
26.75
|
|
M 20
|
2.5 |
18.7
|
20.3÷22.4
|
3
|
42.8
|
30
|
32.95
|