IMPERIAL - Grade 5 bolts, allow a torque
variance of ± 5% either way
IMPERIALE - Bulloni di grado 5, consentono
una variazione di coppia di ± 5% in entrambi
i casi
Bolt size
Thread
lb.ft
1/4 inch
NC
6
1/4 inch
NF
7
5/16 inch
NC
12
5/16 inch
NF
13
3/8 inch
NC
25
3/8 inch
NF
28
7/16 inch
NC
37
7/16 inch
NF
45
1/2 inch
NC
54
1/2 inch
NF
65
9/16 inch
NC
70
9/16 inch
NF
85
5/8 inch
NC
108
5/8 inch
NF
130
3/4 inch
NC
185
3/4 inch
NF
220
7/8 inch
NC
310
7/8 inch
NF
360
1 inch
NC
440
1 inch
NF
518
IMPERIAL - Grade 8 bolts, allow a torque
variance of ± 5% either way
IMPERIALE - Bulloni di grado 8, consentono
una variazione di coppia di ± 5% in entrambi
i casi
Nm
Bolt size
8
1/4 inch
10
1/4 inch
16
5/16 inch
17
5/16 inch
32
3/8 inch
37
3/8 inch
48
7/16 inch
60
7/16 inch
71
1/2 inch
90
1/2 inch
95
9/16 inch
115
9/16 inch
145
5/8 inch
175
5/8 inch
250
3/4 inch
300
3/4 inch
422
7/8 inch
490
7/8 inch
595
1 inch
700
1 inch
Thread
lb.ft
Nm
NC
8
11
NF
11
13
NC
16
21
NF
17
24
NC
33
44
NF
37
50
NC
48
65
NF
59
80
NC
73
100
NF
88
120
NC
95
130
NF
112
152
NC
142
193
NF
173
235
NC
245
332
NF
295
400
NC
415
563
NF
480
650
NC
585
795
NF
690
930
Metric Bolts - Table of Standard Torques
(± 5% Nm)
Bulloni metrici - Tabella coppie standard
(± 5% Nm)
Bolt size
Thread
lb.ft
Nm
M5
6
9
M6
10
15
M8
25
35
M10
50
75
M12
85
130
150
M14
140
205
240
M16
215
315
370
M20
435
620
725
M24
750
1070
1255
10
18
45
85
3