STANDARD SPECIFICATIONS
2-3
General Torque Specifications
(rev. 4/97)
Figure 2-1: General Torque Specifications
TORQUE SPECIFIED IN FOOT POUNDS -
This chart provides tightening torques for general purpose applications when
special torques are not specified on process or drawing. Assembly torques apply to plated nuts and capscrews assembled
without supplemental lubrication (as received condition). They do not apply if special graphite moly-disulfide or other extreme
pressure lubricants are used. When fasteners are dry (solvent cleaned) add 33% to as received condition torque. Bolt head
identification marks indicate grade and may vary from manufacturer to manufacturer. Thick nuts must be used on grade 8
capscrews. Use value in [ ] if using prevailing torque nuts.
UNC SIZE
SAE Grade 2
SAE Grade 5
SAE Grade 8
UNF SIZE
SAE Grade 2
SAE Grade 5
SAE Grade 8
1/4-20
4 [5]
6 [7]
9 [11]
1/4-28
5 [6]
7 [9]
10 [12]
5/16-18
8 [10]
13 [13]
18 [22]
5/16-24
9 [11]
14 [17]
20 [25]
3/8-16
15 [19]
23 [29]
35 [42]
3/8-24
17 [21]
25 [31]
35 [44]
7/16-14
24 [30]
35 [43]
55 [62]
7/16-20
27 [34]
40 [50]
60 [75]
1/2-13
35 [43]
55 [62]
80 [100]
1/2-20
40 [50]
65 [81]
90 [112]
9/16-12
55 [62]
80 [100]
110 [137]
9/16-18
60 [75]
90 [112]
130 [162]
5/8-11
75 [94]
110 [137]
170 [212]
5/8-18
85 [106]
130 [162]
180 [225]
3/4/10
130 [162]
200 [250]
280 [350]
3/4-16
150 [188]
220 [275]
320 [400]
7/8-9
125 [156]
320 [400]
460 [575]
7/8-14
140 [175]
360 [450]
500 [625]
1-8
190 [237]
408 [506]
680 [850]
1-14
210 [263]
540 [675]
760 [950]
1-1/8-7
270 [337]
600 [750]
960 [1200]
1-1/8-12
300 [375]
660 [825]
1080 [1350]
1-1/4-7
380 [475]
840 [1050]
1426 [1782]
1-1/4-12
420 [525]
920 [1150]
1500 [1875]
1-3/8-6
490 [612]
1010 [1375]
1780 [2225]
1-3/8-12
560 [700]
1260 [1575]
2010 [2512]
1-1/2-6
650 [812]
1460 [1825]
2360 [2950]
1-1/2-12
730 [912]
1640 [2050]
2660 [3325]
1-3/4-5
736 [920]
1651 [2063]
2678 [3347]
1-3/4-12
920 [1150]
2063 [2579]
3347 [4183]
METRIC:
Coarse thread metric class 10.9 fasteners and class 10.0 nuts and through hardened flat washers, phosphate coated, Rockwell
“C” 38-45. Use value in [ ] if using prevailing torque nuts.
Nominal
thread
diameter
(mm)
Newton
Meters
(Standard
Torque)
Foot
Pounds
(Standard
Torque)
Nominal
Thread
Diameter
(mm)
Newton
Meters
(Standard
Torque)
Foot
Pounds
(Standard
Torque
6
10 [14]
7 [10]
20
385 [450]
290 [335]
7
16 [22]
12 [16]
24
670 [775]
500 [625]
8
23 [32]
17 [24]
27
980 [1105]
730 [825]
10
46 [60]
34 [47]
30
1330 [1470]
990 [1090]
12
80 [125]
60 [75]
33
1790 [1950]
1340 [1450]
14
125 [155]
90 [115]
36
2325 [2515]
1730 [1870]
16
200 [240]
150 [180]
39
3010 [3210]
2240 [2380]
18
275 [330]
205 [245]
Содержание 2511 IN-3-30 2511 N-4-30 2511 N-5-30
Страница 28: ...2 20 F 1040 0123 STANDARD SPECIFICATIONS TABLE OF CONTENTS NOTES...
Страница 46: ...3 18 F 1040 0123 ASSEMBLY INSTRUCTIONS TABLE OF CONTENTS Table provided for general use NOTES...
Страница 54: ...4 8 F 1040 0123 OPERATION AND MAINTENANCE TABLE OF CONTENTS Table provided for general use NOTES...
Страница 56: ...5 2 F 1040 0123 TROUBLESHOOTING GUIDE TABLE OF CONTENTS NOTES...
Страница 58: ...6 2 F 1040 0123 QUICK START GUIDES TABLE OF CONTENTS Table provided for general use NOTES...