Owner`s manual

29
GENERAL TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE: These values apply to fasteners as received from supplier, dry or when lubricated with normal oil. They do not apply if
special graphited or moly disulphide greases or other extreme pressure lubricants are used. This applies to both UNF and UNC
threads.
TORQUE SPECIFICATION TABLE
SEE Grade No.
2 5 8 *
BOLT HEAD
IDENTIFICATION
MARKS AS PER GRADE
NOTE MANUFACTURING
MARKS WILL VARY
TORQUE TORQUE TORQUE
BOLT SIZE POUNDS FEET NEWTON-METERS POUNDS FEET NEWTON-METERS POUNDS FEET NEWTON-METERS
Inches Millimetre Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Max. Min. Max. Max.
1/4" 6.35 5 6 6.8 8.13 9 11 12.2 14.9 12 15 16.3 30.3
5/16" 7.94 10 12 13.6 16.3 17 20.5 23.1 27.8 24 29 32.5 39.3
3/8" 9.53 20 23 27.1 31.2 35 42 47.5 57 45 54 61 73.2
7/16" 11.11 30 35 40.7 47.4 54 64 73.2 86.8 70 84 94.9 113.9
1/2" 12.7 45 52 61 70.5 80 96 108.5 130.2 110 132 149.2 179
9/16" 14.29 65 75 88.1 101.6 110 132 149.2 179 160 192 217 260.4
5/8" 15.88 95 105 128.7 142.3 150 180 203.4 244.1 220 264 298.3 358
3/4" 19.05 150 185 203.3 250.7 270 324 366.1 439.3 380 456 515.3 618.3
7/8" 22.23 160 200 216.8 271 400 480 542.4 650.9 600 720 813.6 976.3
1" 25.4 250 300 338.8 406.5 580 696 786.5 943.8 900 1080 1220.4 1464.5
*Thick nuts must be used with grade 8 bolts
METRIC BOLT TORQUE SPECIFICATIONS
COARSE THREAD
Size Screw Grade No. Pitch (mm) Pounds Feet Newton-Meters Pitch (mm) Pounds Feet Newton-Meters
M6 4T 1.00 3.6 - 5.8 4.9 - 7.9 - - -
7T 5.8 - 9.4 7.9 - 12.7 - -
8T 7.2 - 10 9.8 - 13.6 - -
M8 4T 1.25 7.2 - 14 9.8 - 19 1.00 12 - 17 16.3 - 23
7T 17 - 22 23 - 29.8 19 - 27 25.7 - 36.6
8T 20 - 26 27.1 - 35.2 22 - 31 29.8 - 42
M10 4T 1.50 20 - 25 27.1 - 33.9 1.25 20 - 29 27.1 - 39.3
7T 34 - 40 46.1 - 54.2 35 - 47 47.4 - 63.7
8T 38 - 46 51.5 - 62.3 40 - 52 54.2 - 70.5
M12 4T 1.75 28 - 34 37.9 - 46.1 1.25 31 - 41 42 - 55.6
7T 51 - 59 69.1 - 79.9 56 - 68 75.9 - 92.1
8T 57 - 66 77.2 - 89.4 62 - 75 84 - 101.6
M14 4T 2.00 49 - 56 66.4 - 75.9 1.50 52 - 64 70.5 - 86.7
7T 81 - 93 109.8 - 126 90 - 106 122 - 143.6
8T 96 - 109 130.1 - 147.7 107 - 124 145 - 168
M16 4T 2.00 67 - 77 90.8 - 104.3 1.50 69 - 83 93.5 - 112.5
7T 116 - 130 157.2 - 176.2 120 - 138 162.6 - 187
8T 129 - 145 174.8 - 196.5 140 - 158 189.7 - 214.1
M18 4T 2.00 88 - 100 119.2 - 136 1.50 100 - 117 136 - 158.5
7T 150 - 168 203.3 - 227.6 177 - 199 239.8 - 269.6
8T 175 - 194 237.1 - 262.9 202 - 231 273.7 - 313
M20 4T 2.50 108 - 130 146.3 - 176.2 1.50 132 - 150 178.9 - 203.3
7T 186 - 205 252 - 277.8 206 - 242 279.1 - 327.9
8T 213 - 249 288.6 - 337.4 246 - 289 333.3 - 391.6
FINE THREAD