9-6 OM EZ17 us 1.0 * ez17t900.fm
9
9.9 Tightening torques
General tightening torques
Property class 8.8 10.9 12.9 8.8 10.9
Screw dimen-
sions
Screws according to DIN 912, DIN 931, DIN 933 etc. Screws according to DIN 7984
Nm (ft.lbs.) Nm (ft.lbs.) Nm (ft.lbs.) Nm (ft.lbs.) Nm (ft.lbs.)
M5 5.5 (4) 8 (6) 10 (7) 5 (4) 7 (5)
M6 10 (7) 14 (10) 17 (13) 8.5 (6) 12 (9)
M8 25 (18) 35 (26) 42 (31) 20 (15) 30 (22)
M10 45 (33) 65 (48) 80 (59) 40 (30) 59 (44)
M12 87 (64) 110 (81) 147 (108) 69 (51) 100 (74)
M14 135 (100) 180 (133) 230 (170) 110 (81) 160 (118)
M16 210 (155) 275 (203) 350 (258) 170 (125) 250 (184)
M18 280 (207) 410 (302) 480 (354) 245 (181) 345 (254)
M20 410 (302) 570 (420) 690 (509) 340 (251) 490 (361)
M22 550 (406) 780 (575) 930 (686) 460 (339) 660 (487)
M24 710 (524) 1000 (738) 1190 (878) 590 (435) 840 (620)
M27 1040 (767) 1480 (1,092) 1770 (1,305) 870 (642) 1250 (922)
M30 1420 (1,047) 2010 (1,482) 2400 (1,770) 1200 (885) 1700 (1,254)
Tightening torques/fine-pitch thread
Property class 8.8 10.9 12.9 8.8 10.9
Screw dimen-
sions
Screws according to DIN 912, DIN 931, DIN 933
etc.
Screws according to DIN 7984
Nm (ft.lbs.) Nm (ft.lbs.) Nm (ft.lbs.) Nm (ft.lbs.) Nm (ft.lbs.)
M8X1.0 25 (18) 37 (28) 43 (32) 22 (16) 32 (24)
M10X1.0 50 (37) 75 (55) 88 (65) 43 (32) 65 (48)
M10X1.25 49 (36) 71 (52) 83 (61) 42 (31) 62 (46)
M12X1.25 87 (64) 130 (96) 150 (111) 75 (55) 110 (81)
M12X1.5 83 (61) 125 (92) 145 (107) 72 (53) 105 (77)
M14X1.5 135 (100) 200 (148) 235 (173) 120 (89) 175 (129)
M16X1.5 210 (155) 310 (229) 360 (266) 180 (133) 265 (195)
M18X1.5 315 (232) 450 (332) 530 (391) 270 (199) 385 (284)
M20X1.5 440 (325) 630 (465) 730 (538) 375 (277) 530 (391)
M22X1.5 590 (435) 840 (620) 980 (723) 500 (369) 710 (524)
M24X2.0 740 (546) 1070 (789) 1250 (922) 630 (465) 900 (664)
M27X2.0 1100 (811) 1550 (1,143) 1800 (1,328) 920 (679) 1300 (959)
M30X2.0 1500 (1,106) 2150 (1,586) 2500 (1,844) 1300 (959) 1850 (1,364)
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