General Torque Specification - Kubota ZG222A-AU Operator's Manual

GENERAL TORQUE SPECIFICATION

American standard cap screws
with UNC or UNF threads
SAE grade No.
(lbf-ft)
1/4 (N-m)
(kgf-m)
(lbf-ft)
5/16 (N-m)
(kgf-m)
(lbf-ft)
3/8 (N-m)
(kgf-m)
(lbf-ft)
1/2 (N-m) 108.5 - 130.2
(kgf-m) 11.07 - 13.29
(lbf-ft)
9/16 (N-m) 149.2 - 179.0
(kgf-m) 15.22 - 18.27
(lbf-ft)
5/8 (N-m) 203.4 - 244.1
(kgf-m) 20.75 - 24.91
GR.5 GR.8
8 - 9.6 12 - 14.4
10.7 - 12.9 16.1 - 19.3
1.11 - 1.33 1.66 - 1.99
17 - 20.5 24 - 29
23.1 - 27.8 32.5 - 39.3
2.35 - 2.84 3.31 - 4.01
35 - 42 45 - 54
47.5 - 57.0 61.0 - 73.2
4.84 - 5.82 6.22 - 7.47
80 - 96 110 - 132
149.2 - 179.0
15.22 - 18.27
110 - 132 160 - 192
217.0 - 260.4
22.14 - 26.57
150 - 180 220 - 264
298.3 - 358.0
30.44 - 36.53
Metric cap screws
Property class
(lbf-ft)
M6 (N-m)
(kgf-m)
(lbf-ft)
M8 (N-m)
(kgf-m)
(lbf-ft)
M10 (N-m)
(kgf-m)
(lbf-ft)
M12 (N-m)
(kgf-m)
(lbf-ft)
M14 (N-m)
(kgf-m)
(lbf-ft)
M16 (N-m)
(kgf-m)
ADJUSTMENT
Class 8.8 Class 10.9
7.2 - 8.3
9.81 - 11.3
1.0 - 1.15
17.4 - 20.2 21.7 - 25.3
23.6 - 27.4 29.4 - 34.3
2.4 - 2.8 3.0 - 3.5
35.5 - 41.2 44.9 - 52.1
48.1 - 55.8 60.8 - 70.5
4.9 - 5.7 6.2 - 7.2
57.2 - 66.5 76.0 - 86.8
77.5 - 90.1 103 - 117
7.9 - 9.2 10.5 - 12.0
91.2 - 108 123 - 144
124 - 127 167 - 196
12.6 - 15.0 17.0 - 20.0
145 - 166 192 - 224
196 - 225 260 - 303
20.0 - 23.0 26.5 - 31.0
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