Tightening torques M
A
are given for screw plugs made of steel (St) with surface protected by a phosphate
coating and oiled or galvanized.
Threads and mating faces beneath heads must be coated with engine oil prior to assembly.
An assembly tolerance of +10% of the figures in the table is permitted due to unavoidable deviations during
the tightening process.
Tightening torques for plug screws to DIN 908, DIN 910 and DIN 7604A (with short threaded end).
Thread
Screwed into
Steel/gray cast iron M
A
(Nm)
AI alloy M
A
(Nm)
M10 x 1 15 15
M12 x 1.5 25 25
M14 x 1.5 35 30
M16 x 1.5 40 35
M18 x 1.5 50 40
M20 x 1.5 60 50
M22 x 1.5 70 70
M24 x 1.5 85 80
M26 x 1.5 100 100
M27 x 2 100 100
M30 x 1.5 110 110
M30 x 2 120 120
M33 x 2 160 160
M36 x 1.5 190 180
M38 x 1.5 220 200
M42 x 1.5 260 240
M45 x 1.5 290 270
M48 x 1.5 310 300
M52 x 1.5 325 320
M56 x 2 380 360
20 | General Information | MS150119/01E 2016-02
TIM-ID: 0000002333 - 017
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