nuts

Nominal diameterhole D (mm)
PitchP (mm)
Flat sizeA/F (mm)
External diameterA/C (mm)
Height H (mm)
1stchoice
2ndchoice
coarse
fine
Nominal diameterhole D (mm)
PitchP (mm)
Flat sizeA/F (mm)
External diameterA/C (mm)
Height H (mm)
1stchoice
2ndchoice
coarse
fine
Hex Nut
Jam Nut
Nylon Nut
1
0.25
2.5
1.2
0.25
1.4
0.3
1.6
0.35
3.2
1.8
0.35
2
0.4
4
1.6
1.2
-
2.5
0.45
5
2
1.6
-
3
0.5
5.5
6.4
2.4
1.8
4
3.5
0.6
6
4
0.7
7
8.1
3.2
2.2
5
5
0.8
8
9.2
4
2.7
5
6
1
0.75
10
11.5
5
3.2
6
7
1
11
5.5
3.5
-
8
1.25
1
13
15
6.5
4
8
10
1.5
1.25 or 1
17
19.6
8
5
10
12
1.75
1.5 or 1.25
19
22.1
10
6
12
14
2
1.5
22
11
7
14
16
2
1.5
24
27.7
13
8
16
18
2.5
2 or 1.5
27
15
9
18.5
20
2.5
2 or 1.5
30
34.6
16
10
20
22
2.5
2 or 1.5
32
24
3
2
36
41.6
19
27
3
2
41
30
3.5
2
46
53.1
24
33
3.5
2
36
4
3
55
63.5
29
39
4
3
42
4.5
3
45
4.5
3
48
5
3
52
5
4
56
5.5
4
60
5.5
4
64
6
4

Hex Nut
Jam Nut
Nylon Nut
1
0.25
2.5
1.2
0.25
1.4
0.3
1.6
0.35
3.2
1.8
0.35
2
0.4
4
1.6
1.2
-
2.5
0.45
5
2
1.6
-
3
0.5
5.5
6.4
2.4
1.8
4
3.5
0.6
6
4
0.7
7
8.1
3.2
2.2
5
5
0.8
8
9.2
4
2.7
5
6
1
0.75
10
11.5
5
3.2
6
7
1
11
5.5
3.5
-
8
1.25
1
13
15
6.5
4
8
10
1.5
1.25 or 1
17
19.6
8
5
10
12
1.75
1.5 or 1.25
19
22.1
10
6
12
14
2
1.5
22
11
7
14
16
2
1.5
24
27.7
13
8
16
18
2.5
2 or 1.5
27
15
9
18.5
20
2.5
2 or 1.5
30
34.6
16
10
20
22
2.5
2 or 1.5
32
24
3
2
36
41.6
19
27
3
2
41
30
3.5
2
46
53.1
24
33
3.5
2
36
4
3
55
63.5
29
39
4
3
42
4.5
3
45
4.5
3
48
5
3
52
5
4
56
5.5
4
60
5.5
4
64
6
4
[edit] Classifications

This section requires expansion.
Mechanical specifications of English sized nuts[1]
Material
Proof strength
Tensile yield strength (min.)
Tensile ultimate strength (min.)
Nut marking
Nut class
ISO 898
Low or medium carbon steel
380 MPa (55 ksi)
420 MPa (61 ksi)
520 MPa (75 ksi)

5
Medium carbon steel Q&T
580 MPa (84 ksi)
640 MPa (93 ksi)
800 MPa (116 ksi)

8
Alloy steel Q&T
830 MPa (120 ksi)
940 MPa (136 ksi)
1040 MPa (151 ksi)

10
SAE J429
Low or medium carbon steel
55 ksi (379 MPa)
57 ksi (393 MPa)
74 ksi (510 MPa)

2
Medium carbon steel Q&T
85 ksi (586 MPa)
92 ksi (634 MPa)
120 ksi (827 MPa)

5
Alloy steel Q&T
120 ksi (827 MPa)
130 ksi (896 MPa)
150 ksi (1034 MPa)

8
[edit] See also
Bolted joint
Cage nut
Pipe cap
Screw
Tap
Tapped hole
Threaded insert
Washer
[edit] References
^ Bickford & Nassar 1998, p. 153.
[edit] Bibliography
Bickford, John H.; Nassar, Sayed (1998), Handbook of bolts and bolted joints, CRC Press, ISBN 9780824799779, http://books.google.com/books?id=NaZwZK2xm-QC .
[edit] External links
http://www.boltdepot.com/fastener-information/