00-19
00
M 5
2 to 3
—
4 to 6
—
{1.4 to 2.2, 0.2 to 0.3} {2.9 to 4.3, 0.4 to 0.6}
M 6
4 to 6
—
7 to 11
—
{2.9 to 4.3, 0.4 to 0.6} {5.1 to 8.0, 0.7 to 1.1}
M 8
9 to 14
—
17 to 26
—
{6.5 to 10, 0.9 to 1.4} {12 to 19, 1.7 to 2.6}
M 10
19 to 28 18 to 26 36 to 52 33 to 49
{14 to 20, 1.9 to 2.8} {13 to 20, 1.8 to 2.7} {25 to 40, 3.5 to 5.5} {25 to 36, 3.5 to 5.0}
M 12
35 to 50 31 to 46 70 to 95 65 to 85
{25 to 36, 3.4 to 5.0} {22 to 34, 3.1 to 4.7} {51 to 69, 7.0 to 9.5} {47 to 61, 6.5 to 8.5}
M 14
60 to 85 55 to 75 120 to 160 110 to 140
{43 to 61, 6.0 to 8.5} {40 to 54, 5.5 to 7.5} {87 to 115, 12 to 16} {80 to 100, 11 to 14}
M 16
90 to 130 90 to 120 180 to 240 160 to 220
{69 to 94, 9.5 to 13} {65 to 87, 9.0 to 12} {130 to 175, 18 to 24} {115 to 160, 16 to 22}
M 18
140 to 190 120 to 160 260 to 340 220 to 290
{100 to 135, 14 to 19} {87 to 115, 12 to 16} {180 to 255, 25 to 35} {160 to 215, 22 to 30}
M 20
190 to 260 170 to 230 350 to 470 320 to 420
{135 to 190, 19 to 26} {120 to 165, 17 to 23} {260 to 345, 36 to 48} {230 to 310, 32 to 43}
M 22
260 to 340 230 to 300 470 to 640 430 to 570
{190 to 255, 26 to 35} {165 to 225, 23 to 31} {345 to 470, 48 to 65} {310 to 420, 43 to 58}
M 24
340 to 450 290 to 390 630 to 840 540 to 730
{255 to 330, 34 to 46} {210 to 290, 29 to 40} {455 to 620, 63 to 86} {395 to 535, 55 to 74}
Strength
classification
Diameter
symbol
Repre-
sentation
Hex-head Nut Unit : N·m {lbf.ft, kgf·m}
Standard screw
Coarse screw
Standard screw
Coarse screw
4T
6T
Hex-head Flange Nut
Unit : N·m {lbf.ft, kgf·m}
Strength
classifica-
M 6
4 to 6
—
{2.9 to 4.3, 0.4 to 0.6}
M 8
10 to 15
—
{7.0 to 11, 1.0 to 1.5}
M 10
21 to 30 20 to 28
{15 to 22, 2.1 to 3.1} {14 to 21, 1.9 to 2.9}
M 12
38 to 54 35 to 51
{27 to 40, 3.8 to 5.5} {25 to 38, 3.4 to 5.2}
4T
Repre-
sentation
tion
Standard screw
Coarse screw