INTRODUCTION
1. Manufacturer's Identication
2. Property Class
3. Clock Marking of Property Class and Manufacturer's Identication (Optional), i.e. marks 60 ° apart indicate Class
10 properties, and marks 120 ° apart indicate Class 8.
INCH NON-FLANGED HARDWARE
NOMINAL
SIZE
SAE GRADE 5 BOLT
and NUT
SAE GRADE 8 BOLT
and NUT
LOCKNUT
GrB W/ Gr5
BOLT
LOCKNUT
GrC W/ Gr8
BOLT
UN-
PLATED
or
PLATED
SILVER
PLATED
W/ZnCr
GOLD
UN-
PLATED
or PLATED
SILVER
PLATED
W/ZnCr
GOLD
1/4
8 N·m (71 lb
in)
11 N·m (97 lb
in)
12 N· m (106
lb in)
16 N·m (142
lb in)
8.5 N·m (75 lb in)
12. 2 N·m (109 lb
in)
5/16
17 N·m (150
lb in)
23 N·m (204
lb in)
24 N· m (212
lb in)
32 N·m (283
lb in)
17. 5 N·m (155 lb
in)
25 N·m (220 lb
in)
3/8
30 N·m (22 lb
ft)
40 N·m (30
lb ft)
43 N·m (31 lb
ft)
57 N·m (42 lb
ft)
31 N·m (23 lb ft) 44 N· m (33 lb ft)
7/16
48 N·m (36 lb
ft)
65 N·m (48
lb ft)
68 N·m (50 lb
ft)
91 N·m (67 lb
ft)
50 N·m (37 lb ft) 71 N· m (53 lb ft)
1/2
74 N·m (54 lb
ft)
98 N·m (73
lb ft)
104 N·m (77
lb ft)
139 N·m (103
lb ft)
76 N·m (56 lb ft) 108 N· m (80 lb ft)
9/16
107 N·m (79
lb ft)
142 N·m(105
lb ft)
150 N·m (111
lb ft)
201 N·m (148
lb ft)
111 N·m (82 lb ft)
156 N· m (115 lb
ft)
5/8
147 N·m (108
lb ft)
196 N·m(145
lb ft)
208 N·m (153
lb ft)
277 N·m (204
lb ft)
153 N·m (113 lb
ft)
215 N· m (159 lb
ft)
3/4
261 N·m (193
lb ft)
348 N·m(257
lb ft)
369 N·m (272
lb ft)
491 N·m (362
lb ft)
271 N·m (200 lb
ft)
383 N· m (282 lb
ft)
7/8
420 N·m (310
lb ft)
561 N·m(413
lb ft)
594 N·m (438
lb ft)
791 N·m (584
lb ft)
437 N·m (323 lb
ft)
617 N· m (455 lb
ft)
1
630 N·m (465
lb ft)
841 N·m(620
lb ft)
890 N·m (656
lb ft)
1187 N·m
(875 lb ft)
654 N·m (483 lb
ft)
924 N· m (681 lb
ft)
NOTE : For Imperial Units, 1/4 in and 5/16 in hardware torque specications are shown in pound -inches. 3/8 in
through 1 in hardware torque specications are shown in pound-feet.
47506838 04/04/2013
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