Minimum hardware tightening torques, Metric hardware and locknuts – Buhler 2180 User Manual
Page 295
SECTION 5 - SPECIFICATIONS
5-23
M4
15* (1.7)
19* (2.2)
23* (2.6)
30* (3.4)
33* (3.7)
42* (4.8)
16* (1.8)
M6
51* (5.8)
67* (7.6)
79* (8.9)
102* (12)
115* (13)
150* (17)
56* (6.3)
M8
124* (14)
159* (18)
195* (22)
248* (28)
274* (31)
354* (40)
133* (15)
M10
21 (28)
27 (36)
32 (43)
41 (56)
45 (61)
58 (79)
22 (30)
M12
36 (49)
46 (63)
55 (75)
72 (97)
79 (107)
102 (138)
39 (53)
M16
89 (121)
117 (158)
137 (186)
177 (240)
196 (266)
254 (344)
97 (131)
M20
175 (237)
226 (307)
277 (375)
358 (485)
383 (519)
495 (671)
195 (265)
M24
303 (411)
392 (531)
478 (648)
619 (839)
662 (897) 855 (1160)
338 (458)
NOTE: Torque values shown with * are inch pounds.
IDENTIFICATION
HEX CAP SCREW AND CARRIAGE BOLTS
CLASSES 5.6 AND UP
MANUFACTURER’S IDENTIFICATION
PROPERTY CLASS
HEX NUTS AND LOCKNUTS
CLASSES 05 AND UP
MANUFACTURER’S IDENTIFICATION
MINIMUM HARDWARE TIGHTENING TORQUES
IN FOOT POUNDS (NEWTON-METERS) FOR NORMAL ASSEMBLY APPLICATIONS
METRIC HARDWARE AND LOCKNUTS
SIZE
UNPLATED
PLATED
UNPLATED
PLATED
UNPLATED
PLATED
W/CL8.8
W/ZnCr
W/ZnCr
W/ZnCr
BOLT
CLASS 5.8
CLASS 8.8
CLASS 10.9
PROPERTY CLASS
LOCKNUT
CL.8
NOMINAL
CLOCK MARKING