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Fastener Torque Guide

Bolt Torque Charts
These charts show suggested maximum torque values for threaded products and are intended only as a guide. Always refer to the manufacturers recommended torque values if possible. Pro Torque Tools is not responsible for any application of torque or it's consequences as a result of using this chart. Use at your own risk!
   
Bolt Size
18-8
    Stainless
    Steel 
Brass
Aluminum
    2024-T4
316
    Stainless
   Steel
Nylon
INCH POUNDS
2 - 56
2.5
2.0
1.4
2.6
0.44
4 - 40
5.2
4.3
2.9
5.5
1.19
4 - 48
6.6
5.4
3.6
6.9
 
6 - 32
9.6
7.9
5.3
10.1
2.14
6 - 40
12.1
9.9
6.6
12.7
 
8 - 32
19.8
16.2
10.8
20.7
4.30
8 - 36
22.0
18.0
12.0
23.0
 
10 - 24
22.8
18.6
13.8
23.8
6.61
10 - 32
31.7
25.9
19.2
33.1
8.20
1/4" - 20
75.2
61.5
45.6
78.8
16.00
1/4" - 28
94.0
77.0
57.0
99.0
20.80
5/16" - 18
132.0
107.0
80.0
138.0
34.90
5/16" - 24
142.0
116.0
86.0
147.0
 
3/8" - 16
236.0
192.0
143.0
247.0
 
3-8" - 24
259.0
212.0
157.0
271.0
 
7/16" - 14
376.0
317.0
228.0
393.0
 
7/16" - 20
400.0
357.0
242.0
418.0
 
1/2" - 13
517.0
422.0
313.0
542.0
 
1/2" - 20
541.0
443.0
328.0
565.0
 
9/16" - 12
682.0
558.0
413.0
713.0
 
9/16" - 18
752.0
615.0
456.0
787.0
 
5/8" - 11
1110.0
907.0
715.0
1160.0
 
5/8" - 18
1244.0
1016.0
798.0
1301.0
 
3/4" - 10
1530.0
1249.0
980.0
1582.0
 
3/4" - 16
1490.0
1220.0
958.0
1558.0
 
7/8" - 9
2328.0
1905.0
1495.0
2430.0
 
7/8" - 14
2318.0
1895.0
1490.0
2420.0
 
1" - 8
3440.0
2815.0
2205.0
3595.0
 
1"- 14
3110.0
2545.0
1995.0
3250.0
 

Bolt
    Size
    Inches
Coarse
    Thread/
    inch
SAE 0-1-2
     74,000 psi
     Low Carbon
    Steel
SAE Grade 3
    100,000 psi
    Med Carbon
    Steel
SAE Grade 5
     120,000 psi
    Med. Carbon
    Heat T. Steel
SAE Grade 6
    133,000 psi
    Med. Carbon
    Temp. Steel
SAE Grade 7
    133,000 psi
    Med. Carbon
    Alloy Steel
SAE Grade 8
    150,000 psi
    Med Carbon
    Alloy Steel
FOOT POUNDS
1/4
20
6
9
10
12.5
13
14
5/16
18
12
17
19
24
25
29
3/8
16
20
30
33
43
44
47
7/16
14
32
47
54
69
71
78
1/2
13
47
69
78
106
110
119
9/16
12
69
103
114
150
154
169
5/8
11
96
145
154
209
215
230
3/4
10
155
234
257
350
360
380
7/8
9
206
372
382
550
570
600
1
8
310
551
587
825
840
700
1-1/8
7
480
872
794
1304
1325
1430
1-1/4
7
375
1211
1105
1815
1825
1975
1-3/8
6
900
1624
1500
2434
2500
2650
1-1/2
6
1100
1943
1775
2913
3000
3200
1-5/8
5.5
1470
2660
2425
3985
4000
4400
1-3/4
5
1900
3463
3150
5189
5300
5650
1-7/8
5
2360
4695
4200
6980
7000
7600
2
4.5
2750
5427
4550
7491
7500
8200