Table of Contents
Advertisement
APPENDIX
TORQUE CHARTS
Torque Recommendations for Hydraulic Fittings
Estimated with clamp load as 75% of proof load as specified in ISO 898-1
Property Class
Minimum Tensile
Strength MPa
Nominal Size and
Thread Pitch
M5 x 0.80
M6 x 1.00
M7 x 1.00
M8 x 1.25
M10 x 1.50
M12 x 1.75
M14 x 2.00
M16 x 2.00
M18 x 2.50
M20 x 2.50
M22 x 2.50
M24 x 3.00
M27 x 3.00
M30 x 3.50
M33 x 3.50
M36 x 4.00
Lubed: Cleaned dry bolts lubricated with a standard medium viscosity machine oil. Lubricate all
contact areas of the bolts and washers. Lubricating the bolts is the suggested method.
Weldco-Beales Manufacturing
Metric Bolt Torque Table
8.8
8.8
M6 - M16: 800
M20 - M30: 830
Bolt Torque Specifications in Foot Pounds or (Inch Pounds)
Dry
Lubed
(54)
(41)
(92)
(69)
(156)
(116)
(225)
(169)
37
28
65
49
104
78
161
121
222
167
314
235
428
321
543
407
796
597
1079
809
1468
1101
1886
1415
10.9
10.9
1040
Dry
Lubed
(78)
(59)
(133)
(99)
(222)
(167)
(333)
(242)
53
40
93
69
148
111
230
172
318
238
449
337
613
460
776
582
1139
854
1543
1158
2101
1576
2699
2024
WBM
12.9 SHCS
1220
Dry
Lubed
(91)
(68)
(156)
(116)
(260)
(195)
(377)
(284)
62
47
108
81
173
130
269
202
372
279
525
394
716
537
908
681
1331
998
1804
1353
2455
1842
3154
2366
Page 51
Advertisement
Table of Contents
