General Torque Specifications (Rev. 4/97) - Landoll 7812 Operator And Parts Manual

General Torque Specifications (rev. 4/97)

TORQUE SPECIFIED IN FOOT POUNDS -
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 [parentheses] 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 [parentheses] if using prevailing torque nuts.
Newton Meters
Nominal thread (Standard
diameter (mm) Torque)
6 10
7 16
8 23
10 46
12 80
14 125
16 200
18 275
2-2
TABLE OF CONTENTS
This chart provides tightening torques for general purpose applications when
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]
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 Meters
Thread (Standard
Diameter (mm) Torque)
20 385
24 670
27 980
30 1330
33 1790
36 2325
39 3010
INDEX
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]
F-1127-0622