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SECTION 1 - SPECIFICATIONS
Metric Fastener Torque Chart
Tensile Stress
Size
Pitch
3
0.5
3.5
0.6
4
0.7
5
0.8
6
1
7
1
8
1.25
10
1.5
12
1.75
14
2
16
2
18
2.5
20
2.5
22
2.5
24
3
27
3
30
3.5
33
3.5
36
4
42
4.5
NOTES:
1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
3. * ASSEMBLY USES HARDENED WASHER
4. CLAMP LOAD LISTED FOR SHCS IS SAME AS GRADE 8 OR CLASS 10.9 AND DOES NOT REPRESENT FULL STRENGTH CAPABILITY OF SHCS.
IF HIGHER LOAD IS REQUIRED, ADDITIONAL TESTING IS REQUIRED.
1-18
Values for Zinc Yellow Chromate Fasteners (Ref 4150707)*
CLASS 8.8 METRIC (HEX/SOCKET HEAD) BOLTS CLASS 8 METRIC NUTS
Clamp Load
Area
See Note 4
(Dry or Loctite® 263™)
Sq mm
KN
5.03
2.19
6.78
2.95
8.78
3.82
14.20
6.18
20.10
8.74
28.90
12.6
36.60
15.9
58.00
25.2
84.30
36.7
115
50.0
157
68.3
192
83.5
245
106.5
303
132.0
353
153.5
459
199.5
561
244.0
694
302.0
817
355.5
1120
487.0
Torque
Torque (Lube)
[N.m]
1.3
1.0
2.1
1.6
3.1
2.3
6.2
4.6
11
7.9
18
13
26
19
50
38
88
66
140
105
219
164
301
226
426
320
581
436
737
553
1080
810
1460
1100
1990
1490
2560
1920
4090
3070
Torque
(Loctite® 262™ or 271™ or
(Loctite® 242™ or 271™ or
Vibra-TITE™ 131)
Vibra-TITE™ 111 or 141)
[N.m]
1.2
1.9
2.8
5.6
9.4
16
23
45
79
126
197
271
383
523
663
970
1320
1790
2300
3680
Torque
[N.m]
1.4
2.3
3.4
6.8
12
19
28
55
97
154
241
331
469
639
811
1130
1530
2090
2690
4290
5000059K
31215019
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