GENERAL
L3008,L3608, WSM
G-13
(TH)
[3] METRIC SCREWS, BOLTS AND NUTS
WSM000001GEG0003US0
[4] AMERICAN STANDARD SCREWS, BOLTS AND NUTS WITH
UNC OR UNF THREADS
WSM000001GEG0086US0
[5] PLUGS
WSM000001GEG0005US0
Grade
Property class 8.8 Property class 10.9
Unit N·m kgf·m lbf·ft N·m kgf·m lbf·ft
M8 24 to 27 2.4 to 2.8 18 to 20 30 to 34 3.0 to 3.5 22 to 25
M10 48 to 55 4.9 to 5.7 36 to 41 61 to 70 6.2 to 7.2 45 to 52
M12 78 to 90 7.9 to 9.2 58 to 66 103 to 117 10.5 to 12.0 76.0 to 86.7
M14 124 to 147 12.6 to 15.0 91.2 to 108 167 to 196 17.0 to 20.0 123 to 144
M16 197 to 225 20.0 to 23.0 145 to 166 260 to 304 26.5 to 31.0 192 to 224
Grade
SAE GR.5 SAE GR.8
Unit N·m kgf·m lbf·ft N·m kgf·m lbf·ft
1/4 11.7 to 15.7 1.19 to 1.61 8.61 to 11.6 16.3 to 19.7 1.66 to 2.01 12.0 to 14.6
5/16 23.1 to 27.7 2.35 to 2.83 17.0 to 20.5 33 to 39 3.4 to 4.0 24 to 29
3/8 48 to 56 4.9 to 5.8 35.0 to 42.0 61 to 73 6.3 to 7.4 45 to 54
1/2 110 to 130 11 to 13 80 to 96 150 to 178 15.2 to 18.2 110 to 132
9/16 150 to 178 15.2 to 18.2 110 to 132 217 to 260 22.2 to 26.5 160 to 192
5/8 204 to 244 20.8 to 24.8 150 to 180 299 to 357 30.5 to 36.4 220 to 264
Shape Size
Material of opponent part
Ordinariness Aluminum
N·m kgf·m lbf·ft N·m kgf·m lbf·ft
Tapered screw
R1/8 13 to 21 1.3 to 2.2 9.4 to 15 13 to 21 1.3 to 2.0 9.4 to 15
R1/4 25 to 44 2.5 to 4.5 18 to 32 25 to 34 2.5 to 3.5 18 to 25
R3/8 49 to 88 5.0 to 9.0 37 to 65 49 to 58 5.0 to 6.0 37 to 43
R1/2 58.9 to 107 6.00 to 11.0 43.4 to 79.5 59 to 78 6.0 to 8.0 44 to 57
Straight screw G1/4 25 to 34 2.5 to 3.5 18 to 25 – – –
G3/8 62 to 82 6.3 to 8.4 46 to 60 – – –
G1/2 49 to 88 5.0 to 9.0 37 to 65 – – –
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