TYM BT400 - TORQUE TIGHTENING CHART

TORQUE TIGHTENING CHART
SAE Grade No.
Bolt head identificati
cation (see note 1)
LB FT Nm LB FT Nm LB FT Nm
Min Max Min Max Min Max Min Max Min Max Min Max
1/4 5 6 7 8 9 11 12 15 12  15 16 20
5/16 10 12 14 16 17 20.5 23 28 24  29 33  39
3/8 20 23 27 31 35 42 48 57 45  54 61  73
7/16 30 35 41 47 54 64 73 87 70  84 95  114
1/2 45 52 61 70 80 96 109 130 110 132 149  179
9/16 65 75 88 102 110 132 149 179 160  192 217 260
5/8 95 105 129 142 150 180 203 244 220 264 298  358
3/4 150 185 203 251 270 324 366 439 380 456 515 618
7/8 160 200 217 271 400 480 542 651 600  720 814 976
1 250 300 339 406 580 696 787 944 900 1080 1220 1464
1-1/8 800 880 1085 1193 1280 1440 1736 1953
1-1/4 1120 1240 1519 1681 1820 2000 2468 2712
Bolt size
SAE FASTENER TORQUE CHART
SAE FASTENER TORQUE CHARTSAE FASTENER TORQUE CHART
SAE FASTENER TORQUE CHART
Note
NoteNote
Note :
::
: Use these torques, unless special torques are specified. Values are for UNC and UNF thread fasteners,
plasted or unplated as received from supplier. Fasteners can be dry or lubricated with normal engine oil.
Values do not apply if graphite, moly-disulphide or other extreme pressure lubricant is used.
2 5 8*
8.8 10.9 12.9
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1-3/8 1460 1680
1980 2278 2380 2720 3227 3688
1-1/2 1940 2200 2631 2983 3160 3560 4285 4827
ISO Class No.
Bolt head
identification(see
note1)
Nm LB FT Nm LB FT Nm LB FT
Min Max Min Max Min Max Min Max Min Max Min Max
M4 3 4 2 3 4 5 3 4
M5 6.5 8 5 6 9.5 11 7 8
M6 10.5 12 8 9 15 17.5 11 13
M8 26 31 19 23 37 43 27 32
M10 52 61 38 45 73 87 54 64
M12 90 107 66 79 125 150 93 112
*M14 144 172 106 127 200 245 149 179
M16 217 271 160 200 310 380 230 280
M20 434 515 320 380 610 730 450 540
M24 675 815 500 600 1050 1275 780 940
M30
1250
1500
920 1100 2000 2400 1470 1770
M36
2175
2600
1600
1950
3500 4200 2580 3090
Note 1: Bolt head identification marks as per grade. Manufacturing mark will vary.
Because of the low ductility
of these fasteners, the
torque range is to be
determined individually for
each application.
As s general rule, the
torque ranges specified for
grade 10.9 fasteners can be
used satisfactorily on 12.9
fasteners
*M14 is not a preferred
size.
Note 1: Bolt head identification marks as per grade. Manufacturing marks will vary.
*Thick nuts must be used with Grade 8 bolt
METRIC FASTENER (ISO) TORQUE CHART
METRIC FASTENER (ISO) TORQUE CHARTMETRIC FASTENER (ISO) TORQUE CHART
METRIC FASTENER (ISO) TORQUE CHART
Note :
Note :
Note :
Note : Use these torques. unless special torques are specified. Values are for course thread fasteners,plated
or unplated as received from supplier. Fasteners can be dry or lubricated with normal engine oil. Values do
not apply if graphite, moly-disulphite or other extreme pressure lubricant is used
Bolt Size
8.8 10.9 12.9
8.8 10.9 12.9
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