Metric Torque Reference - 8.8 / 10.9 / 12.9

Printable shop wall chart: Metric Torque Reference - 8.8 / 10.9 / 12.9. Free letter-size PDF to print and post at the counter; 25 x 36 inch poster version available.

Last reviewed 2026-09-10 · reference FG-B51656 · Report an error on this sheet

Before you use a torque value: these are starting estimates for general bolting. Do not use them for pretensioned or slip-critical structural joints (ASTM F3125 A325/A490 under RCSC) — those are installed by turn-of-nut, calibrated wrench, twist-off or DTI methods. Lubrication changes the answer: a dry value applied to a lubricated or plated bolt can yield or break it. The manufacturer’s or engineer’s value always governs.

Size	8.8	10.9	12.9	10.9 lubricated (K 0.15)	12.9 lubricated (K 0.15)
M5 x 0.8	6	9	10	7	8
M6 x 1	11	15	18	11	13
M8 x 1.25	25	36	43	27	32
M10 x 1.5	50	72	84	54	63
M12 x 1.75	88	125	145	94	110
M14 x 2	140	200	235	150	175
M16 x 2	220	310	365	235	275
M20 x 2.5	440	610	710	455	535
M24 x 3	760	1,055	1,230	790	925
M30 x 3.5	1,515	2,095	2,445	1,570	1,835
M36 x 4	2,645	3,660	4,280	2,745	3,210

T = K x d x F, F = 0.75 x ISO 898-1 proof load. Starting estimates only: OEM or engineer torque always governs. Pair with nut class 8 / 10 / 12.

These tables carry the same figures as the printed sheet below.

The printed sheet

Metric Torque Reference - 8.8 / 10.9 / 12.9

25 x 36 inch poster version

For the full-size shop poster, tell us where to send it.

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Text version of this sheet

8.8

10.9

CLASS 8.8

CLASS 10.9

12.9

12.9 (TYP. SOCKET)

Estimated assembly torque, N·m · metric coarse pitch · K = 0.20 dry · clamp load = 75% of proof

Size

8.8

10.9

12.9

10.9 lubricated (K 0.15)

12.9 lubricated (K 0.15)

M5 x 0.8

M6 x 1

M8 x 1.25

M10 x 1.5

M12 x 1.75

125

145

110

M14 x 2

140

200

235

150

175

M16 x 2

220

310

365

235

275

M20 x 2.5

440

610

710

455

535

M24 x 3

760

1,055

1,230

790

925

M30 x 3.5

1,515

2,095

2,445

1,570

1,835

M36 x 4

2,645

3,660

4,280

2,745

3,210

T = K x d x F, F = 0.75 x ISO 898-1 proof load. Starting estimates only: OEM or engineer torque always governs. Pair with nut class 8 / 10 / 12.

The Fastener App | TheFastenerApp.com

Fastener Guide reference FG-B51656 · thefastenerapp.com/fastener-guide/wall-charts/metric-torque-reference-8-8-10-9-12-9 · © The Fastener App. Reference only — verify the current governing standard, drawing and manufacturer data before specifying or installing.

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Electrical12%94

Fleet and Automotive7%53

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Hardware and Building Supplies4%33

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Premier Electric Group5.9%

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Coastal Maintenance Group3.3%

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Customer	Hours a month	Hours a week
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Brunswick Galvanizing Inc.	25.3	5.8
Talleyrand Signs LLC	13.9	3.2
Mayport Tool & Die Inc.	13.5	3.1
Eagle Mechanical LLC	12.5	2.9
Premier Electric Group	10.2	2.4
Tallahassee Packaging LLC	6.4	1.5
Coastal Maintenance Group	5.7	1.3
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