0142
TM 1-1740-221-13&P&P
TORQUE LIMITS - (CONTINUED)
Table 2. Standard SAE Torque Chart (Course Threads)
Standard Steel Bolts
Torque Specifications
Standard Dry Torque in Foot-Pounds
Bolt
SAE Grade 8
SAE Grade 7
SAE Grade 6
SAE Grade 3 SAE Grade 5
SAE Grade
Coarse
Size(in)
150,000 psi
133,000 psi
133,000 psi
120,000 psi
100,000 psi
0-1-2 74,000
Threads
Med. Carbon
Med. Carbon
Med. Carbon Med. Carbon Med. Carbon
psi Low
(ths/in.)
Alloy Steel
Alloy Steel
Temp. Steel
Heat T. Steel
Steel
Carbon Steel
20
6
9
10
12.5
13
14
1/4
18
12
17
19
24
25
29
5/16
16
20
30
33
43
44
47
3/8
14
32
47
54
69
71
78
7/16
13
47
69
78
106
110
119
1/2
12
69
103
114
150
154
169
9/16
11
96
145
154
209
215
230
5/8
10
155
234
257
350
360
380
3/4
9
206
372
382
550
570
600
7/8
1
8
310
551
587
825
840
700
7
480
872
794
1304
1325
1430
1 1/8
7
375
1211
1105
1815
1825
1975
1 1/4
6
900
1624
1500
2434
2500
2650
1 3/8
6
1100
1943
1775
2913
3000
3200
1 1/2
5.5
1470
2660
2425
3985
4000
4400
1 5/8
5
1900
3463
3150
5189
5300
5650
1 3/4
5
2360
4695
4200
6980
7000
7600
1 7/8
2
4.5
2750
5427
4550
7491
7500
8200
Table 3. Standard SAE Torque Chart (Fine Threads)
Standard steel Bolts
Torque Speciications
Standard Dry Torque in Foot-Pounds
SAE 150,000
SAE 133,000
SAE Grade 5
Size (In. - # of
SAE Grade 2
psi Med.
psi Med.
120,000 psi
threads)
74,000 psi Low
Carbon Alloy
Carbon Alloy
Med. Carbon
Carbon Steel
Steel
Steel
Heat T. Steel
6
10
12
14
1/4-28 (NF)
12
19
24
29
5/16-24 (NF)
22
35
45
50
3/8-24 (NF)
55
34
70
80
7/16-20 (NF)
52
90
100
120
1/2-20 (NF)
71
120
150
170
9/16-18 (NF)
115
180
210
240
5/8-18 (NF)
180
300
360
420
3/4-16 (NF)
230
470
580
660
7/8-14 (NF)
350
710
860
990
1-12 (NF)
01422