INTRODUCTION
METRIC FLANGED HARDWARE
NOM.
SIZE
CLASS 8.8 BOLT and CLASS 8 NUT
CLASS 10.9 BOLT and CLASS 10 NUT
UNPLATED
PLATED W/ZnCr
UNPLATED
PLATED W/ZnCr
M4
2.4 N·m
(
21 lb in
)
3.2 N·m
(
28 lb in
)
3.5 N·m
(
31 lb in
)
4.6 N·m
(
41 lb in
)
M5
4.9 N·m
(
43 lb in
)
6.5 N·m
(
58 lb in
)
7.0 N·m
(
62 lb in
)
9.4 N·m
(
83 lb in
)
M6
8.3 N·m
(
73 lb in
)
11 N·m
(
96 lb in
)
12 N·m
(
105 lb in
)
16 N·m
(
141 lb in
)
M8
20 N·m
(
179 lb in
)
27 N·m
(
240 lb in
)
29 N·m
(
257 lb in
)
39 N·m
(
343 lb in
)
M10
40 N·m
(
30 lb ft
)
54 N·m
(
40 lb ft
)
57 N·m
(
42 lb ft
)
77 N·m
(
56 lb ft
)
M12
70 N·m
(
52 lb ft
)
93 N·m
(
69 lb ft
)
100 N·m
(
74 lb ft
)
134 N·m
(
98 lb ft
)
M16
174 N·m
(
128 lb ft
)
231 N·m
(
171 lb ft
)
248 N·m
(
183 lb ft
)
331 N·m
(
244 lb ft
)
M20
350 N·m
(
259 lb ft
)
467 N·m
(
345 lb ft
)
484 N·m
(
357 lb ft
)
645 N·m
(
476 lb ft
)
M24
607 N·m
(
447 lb ft
)
809 N·m
(
597 lb ft
)
838 N·m
(
618 lb ft
)
1118 N·m
(
824 lb ft
)
NOTE:
Torque locknuts
10 %
above standard hardware torque value.
IDENTIFICATION
Metric Hex head and carriage bolts, classes 5.6 and up
20083680
1
1. Manufacturer's Identification
2. Property Class
Metric Hex nuts and locknuts, classes 05 and up
20083681
2
1. Manufacturer's Identification
2. Property Class
3. Clock Marking of Property Class and Manufacturer's Identification (Optional), i.e. marks
60 °
apart indicate Class
10 properties, and marks
120 °
apart indicate Class 8.
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