General Torque Specifications (Rev. 4/97) - Landoll 5110NG Operator's Manual

General Torque
Specifications (rev. 4/97)
TORQUE SPECIFIED IN FOOT POUNDS -
when special torques are not specified on process or drawing. Assembly torques apply to plated nuts and cap-screws
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 cap-screws. Use value in [ ] if using prevailing torque nuts.
UNC SAE
SIZE Grade 2
1/4-20 4 [5]
5/16-18 8 [10]
3/8-16 15 [19]
7/16-14 24 [30]
1/2-13 35 [43]
9/16-12 55 [62]
5/8-11 75 [94]
3/4-10 130 [162]
7/8-9 125 [156]
1-8 190 [237]
1-1/8-7 270 [337]
1-1/4-7 380 [475]
1-3/8-6 490 [612]
1-1/2-6 650 [812]
1-3/4-5 736 [920]
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 (Standard
(mm)
6
7
8
10
12
14 125
16 200
18 275
SAE SAE
Grade 5 Grade 8
6 [7] 9
13 [13] 18
23 [29] 35
35 [43] 55
55 [62] 80
80 [100] 110
110 [137] 170
200 [250] 280
320 [400] 460
408 [506] 680
600 [750] 960
840 [1050 1426
1010 [1375] 1780
1460 [1825] 2360
1651 [2063] 2678
Newton
Meters Foot Pounds
(Standard
Torque) Torque)
10 [14] 7
16 [22] 12
23 [32] 17
46 [60] 34
80 [125] 60
[155] 90
[240] 150
[330] 205
Table 2-1: General Torque Specifications
This chart provides tightening torques for general purpose applications
UNF
SIZE
[11] 1/4-28
[22] 5/16-24
[42] 3/8-24
[62] 7/16-20
[100] 1/2-20
[137] 9/16-18
[212] 5/8-18
[350] 3/4-16
[575] 7/8-14
[850] 1-14
[1200] 1-1/8-12
[1782] 1-1/4-12
[2225] 1-3/8-12
[2950] 1-1/2-12
[3347] 1-3/4-12
Nominal
Thread
Diameter
(mm)
[10] 20
[16] 24
[24] 27
[47] 30
[75] 33
[115] 36
[180] 39
[245] ---------------
STANDARD SPECIFICATIONS
SAE SAE
Grade 2 Grade 5
5 [6] 7 [9]
9 [11] 14 [17]
17 [21] 25 [31]
27 [34] 40 [50]
40 [50] 65 [81]
60 [75] 90 [112]
85 [106] 130 [162]
150 [188] 220 [275]
140 [175] 360 [450]
210 [263] 540 [675]
300 [375] 660 [825]
420 [525] 920 [1150]
560 [700] 1260 [1575]
730 [912] 1640 [2050]
920 [1150] 2063 [2579]
Newton
Meters
(Standard
Torque)
385 [450]
670 [775]
980 [1105]
1330 [1470]
1790 [1950]
2325 [2515]
3010 [3210]
---------------
SAE
Grade 8
10 [12]
20 [25]
35 [44]
60 [75]
90 [112]
130 [162]
180 [225]
320 [400]
500 [625]
760 [950]
1080 [1350]
1500 [1875]
2010 [2512]
2660 [3325]
3347 [4183]
Foot Pounds
(Standard
Torque
290 [335]
500 [625]
730 [825]
990 [1090]
1340 [1450]
1730 [1870]
2240 [2380]
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