Metric Bolt Torque Table
Estimated with clamp load as 75% of proof load
as specified in ISO 898-1 |
Property Class |
8.8
|
10.9
|
12.9 Socket Head Cap Screw
 |
Minimum Tensile Strength MPa |
M6 - M16: 800
M20 - M30: 830 |
1040 |
1220 |
Nominal Size and Thread Pitch |
Torque in Pound Foot or (Pound Inch) |
|
Dry |
Lubed |
Dry |
Lubed |
Dry |
Lubed |
|
M5 x 0.80 |
(54) |
(41) |
(78) |
(59) |
(91) |
(68) |
|
M6 x 1.00 |
(92) |
(69) |
(133) |
(99) |
(156) |
(116) |
|
M7 x 1.00 |
(156) |
(116) |
(222) |
(167) |
(260) |
(195) |
|
M8 x 1.25 |
(225) |
(169) |
(333) |
(242) |
(377) |
(284) |
|
M10 x 1.50 |
37 |
28 |
53 |
40 |
62 |
47 |
|
M12 x 1.75 |
65 |
49 |
93 |
69 |
108 |
81 |
|
M14 x 2.00 |
104 |
78 |
148 |
111 |
173 |
130 |
|
M16 x 2.00 |
161 |
121 |
230 |
172 |
269 |
202 |
|
M18 x 2.50 |
222 |
167 |
318 |
238 |
372 |
279 |
|
M20 x 2.50 |
314 |
235 |
449 |
337 |
525 |
394 |
|
M22 x 2.50 |
428 |
321 |
613 |
460 |
716 |
537 |
|
M24 x 3.00 |
543 |
407 |
776 |
582 |
908 |
681 |
|
M27 x 3.00 |
796 |
597 |
1139 |
854 |
1331 |
998 |
|
M30 x 3.50 |
1079 |
809 |
1543 |
1158 |
1804 |
1353 |
|
M33 x 3.50 |
1468 |
1101 |
2101 |
1576 |
2455 |
1842 |
| M36 x 4.00 |
1886 |
1415 |
2699 |
2024 |
3154 |
2366 |
Lubed means 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. Thread Engagement
|
Note: Much effort has been made to make sure that this information is accurate. However, it is the user's responsibility to verify that the provided information is correct before using it.