Metric Screws, Bolts And Nuts; American Standard Screws, Bolts And Nuts With Unc Or Unf Threads; Plugs - Kubota B1220 Workshop Manual

B1220, B1620, B1820, WSM

[3] METRIC SCREWS, BOLTS AND NUTS

Grade
Unit N·m
M8 24 to 27
M10 48 to 55
M12 78 to 90
M14 124 to 147
M16 197 to 225
[4] AMERICAN STANDARD SCREWS, BOLTS AND NUTS WITH
UNC OR UNF THREADS
Grade
Unit N·m
1/4 11.7 to 15.7
5/16 23.1 to 27.7
3/8 48 to 56
1/2 110 to 130
9/16 150 to 178
5/8 204 to 244

[5] PLUGS

Shape Size
R1/8
Tapered screw
R1/4
R3/8
R1/2
Straight screw G1/4
G3/8
G1/2
Property class 8.8
kgf·m lbf·ft
2.4 to 2.8 18 to 20
4.9 to 5.7 36 to 41
7.9 to 9.2 58 to 66
12.6 to 15.0 91.2 to 108
20.0 to 23.0 145 to 166
SAE GR.5
kgf·m lbf·ft
1.20 to 1.60 8.63 to 11.5
2.36 to 2.82 17.0 to 20.5
4.9 to 5.7 36 to 41
11.3 to 13.2 81.2 to 95.8
15.3 to 18.1 111 to 131
20.8 to 24.8 151 to 179
Ordinariness
N·m kgf·m
13 to 21 1.3 to 2.2
25 to 44 2.5 to 4.5
49 to 88 5.0 to 9.0
58.9 to 107 6.00 to 11.0
25 to 34 2.5 to 3.5
62 to 82 6.3 to 8.4
49 to 88 5.0 to 9.0
G-12
Property class 10.9
N·m
30 to 34
61 to 70
103 to 117 10.5 to 12.0
167 to 196 17.0 to 20.0
260 to 304 26.5 to 31.0
N·m
16.3 to 19.7 1.67 to 2.00
33 to 39
61 to 73
150 to 178 15.3 to 18.1
217 to 260 22.2 to 26.5
299 to 357 30.5 to 36.4
Material of opponent part
lbf·ft N·m
9.4 to 15 13 to 19
18 to 32 25 to 34
37 to 65 49 to 58
43.4 to 79.5 59 to 78
18 to 25 –
46 to 60 –
37 to 65 –
GENERAL
kgf·m lbf·ft
3.0 to 3.5 22 to 25
6.2 to 7.2 45 to 52
76.0 to 86.7
123 to 144
192 to 224
WSM000001GEG0003US1
SAE GR.8
kgf·m lbf·ft
12.0 to 14.6
3.4 to 3.9 25 to 28
6.3 to 7.4 45 to 53
111 to 131
160 to 191
221 to 263
WSM000001GEG0008US1
Aluminum
kgf·m lbf·ft
1.3 to 2.0 9.4 to 14
2.5 to 3.5 18 to 25
5.0 to 6.0 37 to 43
6.0 to 8.0 44 to 57
– –
– –
– –
WSM000001GEG0005US1
(EU)
KiSC issued 07, 2011 A