General Torque Specifications (Rev. 4/97) - Landoll 302D-B 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 Newton
thread Meters
diameter (Standard
(mm) Torque)
6 10
7 16
8 23
10 46
12 80
14 125
16 200
18 275
TABLE OF CONTENTS
This chart provides tightening torques for general purpose applications
SAE SAE
Grade 5 Grade 8
6 [7] 9 [11]
13 [13] 18 [22]
23 [29] 35 [42]
35 [43] 55 [62]
55 [62] 80 [100]
80 [100] 110 [137]
110 [137] 170 [212]
200 [250] 280 [350]
320 [400] 460 [575]
408 [506] 680 [850]
600 [750] 960 [1200]
840 [1050 1426 [1782]
1010 [1375] 1780 [2225]
1460 [1825] 2360 [2950]
1651 [2063] 2678 [3347]
Foot Pounds
(Standard
Torque)
[14] 7 [10]
[22] 12 [16]
[32] 17 [24]
[60] 34 [47]
[125] 60 [75]
[155] 90 [115]
[240] 150 [180]
[330] 205 [245]
Table 2-3: General Torque Specifications
STANDARD SPECIFICATIONS
UNF SAE
SIZE Grade 2
1/4-28 5 [6]
5/16-24 9 [11]
3/8-24 17 [21]
7/16-20 27 [34]
1/2-20 40 [50]
9/16-18 60 [75]
5/8-18 85 [106]
3/4-16 150 [188]
7/8-14 140 [175]
1-14 210 [263]
1-1/8-12 300 [375]
1-1/4-12 420 [525]
1-3/8-12 560 [700]
1-1/2-12 730 [912]
1-3/4-12 920 [1150]
Nominal Newton
Thread Meters
Diameter (Standard
(mm) Torque)
20 385
24 670
27 980
30 1330
33 1790
36 2325
39 3010
SAE SAE
Grade 5 Grade 8
7 [9] 10 [12]
14 [17] 20 [25]
25 [31] 35 [44]
40 [50] 60 [75]
65 [81] 90 [112]
90 [112] 130 [162]
130 [162] 180 [225]
220 [275] 320 [400]
360 [450] 500 [625]
540 [675] 760 [950]
660 [825] 1080 [1350]
920 [1150] 1500 [1875]
1260 [1575] 2010 [2512]
1640 [2050] 2660 [3325]
2063 [2579] 3347 [4183]
Foot Pounds
(Standard
Torque
[450] 290 [335]
[775] 500 [625]
[1105] 730 [825]
[1470] 990 [1090]
[1950] 1340 [1450]
[2515] 1730 [1870]
[3210] 2240 [2380]
2-3