STANDARD NUT
DIMENSIONS - ISOMETRIC COARSE
| Size |
Pitch |
Isometric
Coarse - B.S. 3692 |
Hex
A/F |
Thickness |
Head
Depth
Bolts/Sets |
Full Nuts |
Lock Nuts |
| M1.6 |
0.35 |
3.2 |
1.3 |
- |
1.225 |
| M2 |
4.0 |
4.0 |
1.6 |
- |
1.525 |
| M2.5 |
0.45 |
5.0 |
2.0 |
- |
1.825 |
| M3 |
0.5 |
5.5 |
2.4 |
- |
2.125 |
| M4 |
0.7 |
7.0 |
3.2 |
2.0 |
2.925 |
| M5 |
0.8 |
8.0 |
4.0 |
2.5 |
3.650 |
| M6 |
1.0 |
10.0 |
5.0 |
3.0 |
4.150 |
| M8 |
1.25 |
13.0 |
6.5 |
5.0 |
6.650 |
| M10 |
1.05 |
17.0 |
8.0 |
6.0 |
7.180 |
| M12 |
1.75 |
19.0 |
10.0 |
7.0 |
8.180 |
| M16 |
2.0 |
24.0 |
13.0 |
8.0 |
10.180 |
| M20 |
2.5 |
30.0 |
16.0 |
9.0 |
13.215 |
| M24 |
3.0 |
36.0 |
19.0 |
10.0 |
15.215 |
| M30 |
3.5 |
46.0 |
24.0 |
12.0 |
19.260 |
| M36 |
4.0 |
55.0 |
29.0 |
14.0 |
23.260 |
METRIC WING NUTS TO BS 856: 1969
Blank
No. |
Thread
Size |
Width
Across
Wings |
Depth
of
Wings |
Depth
of
Boss |
Large
dia. of
Boss |
Small
dia. of
Boss |
T
A
B
L
E
1
|
1 |
M3 |
22.0 |
13.5 |
7 |
9.0 |
6.5 |
2 |
M4 & M5 |
25.5 |
15.0 |
9 |
10.0 |
8.0 |
3 |
M6 |
30.0 |
18.0 |
11.0 |
13.0 |
9.5 |
4 |
M8 |
38.0 |
23.0 |
13 |
16.0 |
12.0 |
5 |
M10 |
44.5 |
25.5 |
14 |
17.5 |
14.0 |
6 |
M12 |
51.0 |
28.5 |
15 |
19.0 |
16.0 |
7 |
M14 |
59.0 |
32.0 |
17 |
22.0 |
17.5 |
8 |
M16 |
63.5 |
36.5 |
19 |
25.5 |
20.5 |
9 |
M18 |
78.0 |
41.0 |
22 |
32.0 |
27.0 |
T
A
B
L
E
2 |
1 |
M3 |
16.5 |
9 |
3 |
8 |
5 |
2 |
M4 & M5 |
21.5 |
11 |
4.5 |
11 |
6 |
3 |
M6 |
27 |
13 |
5 |
12 |
8 |
4 |
M8 |
31 |
16 |
6 |
14 |
9.5 |
5 |
M10 |
36 |
18 |
7 |
17 |
12 |
6 |
M12 |
47.5 |
23 |
9.5 |
22 |
16 |
8 |
M16 |
68 |
35 |
13.5 |
29.5 |
22 |
For information on imperial sizes for the following
nuts, please contact us
- Standard Nut Dimensions - BA - Unified, BS Whit, BS
Fine
- Imperial Wing Nuts to BS 856: 1969
- Hexagon Dome Nuts
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