Challenger MT700 Series, Service Manual, Page: 16 / 51

79023976 B Rev. 11
Introduction
Inch Fasteners
Assembly Torque for Inch Fasteners
Standard High Low
Thread Size Torque
Pound Feet
Lb. Ft.
Torque
Newton
Meters
Nm
Torque
Pound Feet
Lb. Ft.
Torque
Newton
Meters
Nm
Torque
Pound Feet
Lb. Ft.
Torque
Newton
Meters
Nm
1/4 - 20 9 ± 1 12 ± 3 10 ± 1 13 ± 3 4 ± .5 6 ± 1
5/16 - 18 18 ± 2 25 ± 6 20 ± 2 28 ± 7 10 ± 1 13 ± 3
3/8 - 16 35 ± 4 47 ± 9 40 ± 4 50 ± 10 18 ± 2 25 ± 6
7/16 - 14 50 ± 5 70 ±15 60 ± 6 80 ± 15 30 ± 3 40 ± 8
1/2 - 13 75 ± 8 105 ± 20 90 ± 9 120 ± 20 45 ± 5 60 ± 12
9/16 - 12 120 ± 10 160 ± 30 130 ± 13 175 ± 30 60 ± 5 85 ± 15
5/8 - 11 160 ± 15 215 ± 40 175 ± 15 240 ± 40 85 ± 10 115 ± 20
3/4 - 10 275 ± 30 370 ± 50 320 ± 30 430 ± 60 150 ± 15 200 ± 40
7/8 - 9 460 ± 50 620 ± 80 520 ± 50 700 ± 90 240 ± 25 325 ± 40
1 - 8 660 ± 70 900 ± 100 775 ± 75 1050 ± 150 370 ± 35 500 ± 65
1 1/8 - 7 960 ± 100 1300 ± 150 1070 ± 105 1450 ± 150 515 ± 50 700 ± 90
1 1/4 - 7 1320 ± 130 1800 ± 200 1550 ± 155 2100 ± 250 975 ± 95 1000 ± 125
1 3/8 - 6 1780 ± 180 2400 ± 300 1990 ± 200 2700 ± 300 1315 ± 130 1000 ± 150
1 1/2 - 5 2280 ± 230 3100 ± 350 2650 ± 265 3600 ± 400 1680 ± 165 1700 ± 200
Standard Taperlock Studs
Thread Size Torque
Pound Feet
Lb. Ft.
Torque
Newton
Meters
Nm
1/4 6 8
5/16 13 17
3/8 26 35
7/16 33 45
1/2 48 65
5/8 80 110
3/4 125 170
7/8 190 260
1 300 400
1 1/8 390 525
1 1/4 550 750
1 3/8 700 950
1 1/2 880 1200
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