May 2024 | Brickwerks

You know what it’s like, you run a workshop specialising in old vehicles and sometimes you simply just can’t find a tightening torque for something.

As it happen there are “standard” tightening torques for normal nuts and bolts and after managing to glean what I could from the interenet and several sources I brought it all together into one sheet that we had kicking about for emergencies when we simply couldn’t find the data from an automotive source.

There’s no warranty with this info, it’s here to help and for general “get you in the right place” guidance only, use at your own risk, you know the score.

Metric thread sizes
Metric Strength classes	Torque Unit	8.8	10.9	12.9
M8 x 1,00	Nm	29	43	50
M8 x 1,00	ft lbs	21	32	37
M9 x 1,00	Nm	43	63	73
M9 x 1,00	ft lbs	32	46	54
M10 x 1,00	Nm	60	88	103
M10 x 1,00	ft lbs	44	65	76
M10 x 1,25	Nm	57	83	98
M10 x 1,25	ft lbs	42	61	72
M12 x 1,25	Nm	101	149	174
M12 x 1,25	ft lbs	74	110	128
M12 x 1,50	Nm	97	143	167
M12 x 1,50	ft lbs	72	105	123
M14 x 1,50	Nm	159	234	274
M14 x 1,50	ft lbs	117	173	202
M16 x 1,50	Nm	244	359	420
M16 x 1,50	ft lbs	180	265	310
M18 x 1,50	Nm	368	523	613
M18 x 1,50	ft lbs	271	386	452
M18 x 2,00	Nm	348	496	581
M18 x 2,00	ft lbs	257	366	429
M20 x 1,50	Nm	511	728	852
M20 x 1,50	ft lbs	377	537	628
M22 x 1,50	Nm	692	985	1153
M22 x 1,50	ft lbs	510	726	850
M24 x 1,50	Nm	899	1280	1498
M24 x 1,50	ft lbs	663	944	1105
M24 x 2,00	Nm	865	1232	1442
M24 x 2,00	ft lbs	638	909	1064
M27 x 1,50	Nm	1304	1858	2174
M27 x 1,50	ft lbs	962	1370	1603
M27 x 2,00	Nm	1262	1797	2103
M27 x 2,00	ft lbs	931	1325	1551
M30 x 2,00	Nm	1756	2502	2927
M30 x 2,00	ft lbs	1295	1845	2159
M33 x 2,00	Nm	2352	3350	3921
M33 x 2,00	ft lbs	1735	2471	2892
M36 x 2,00	Nm	3082	4390	5137
M36 x 2,00	ft lbs	2273	3238	3789
M39 x 2,00	Nm	3953	5631	6589
M39 x 2,00	ft lbs	2916	4153	4860

Month: May 2024

General tightening torques