Tables
Technical data
168
BA RD18 en 01
5.00.07 Starting torques
The starting torques indicated within the tables apply to
■
nuts and screws with headrest according to ISO 4014, 4032, 4762... (frictional coefficient μ
total
=0.095)
unless otherwise specified.
NOTE
Check the tightening torques of nuts and bolts at regular intervals. Tighten if necessary.
Starting torques for regular type screw threads
Starting torques MA (Nm)
Threads
(wrench size SW)
8.8 10.9 12.9
M4 (SW7) 2.7 4.0 4.7
M5 (SW8) 5.5 8.1 9.5
M6 (SW10) 9.5 14 16.5
M8 (SW13) 21 30 36
M10 (SW16) 41 60 71
M12 (SW18) 71 104 122
M14 (SW21) 113 165 195
M16 (SW24) 175 255 300
M18 (SW27) 250 355 420
M20 (SW30) 350 500 580
M22 (SW34) 480 680 800
M24 (SW36) 600 860 1000
M27 (SW41) 880 1260 1470
M30 (SW46) 1200 1700 2000
Starting torques for fine threads
Starting torques MA (Nm)
Threads
(wrench size)
8.8 10.9 12.9
M8x1 (SW13) 22 32 38
M10x1.25 (SW16) 43 63 74
M12x1.25 (SW18) 76 111 130
M12x1.5 (SW18) 73 108 126
M14x1.5 (SW21) 120 175 205
M16x1.5 (SW24) 183 265 315
M18x1.5 (SW27) 270 390 455
M20x1.5 (SW30) 380 540 630
M22x1.5 (SW34) 510 725 850
M24x2 (SW36) 640 910 1070
M27x2 (SW41) 930 1330 1550
M30x2 (SW46) 1300 1840 2150