General Torque Specifications (Rev. 4/97) - Landoll Coulter Chisel 2112 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 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 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]
2-5