Hardware torque values, Minimum hardware tightening torques – Buhler 2425 User Manual
Page 364
SECTION 5 - SPECIFICATIONS
5-34
HARDWARE TORQUE VALUES
Check the tightness of hardware periodically.
Use the following charts to determine the
correct torque when checking, adjusting or
replacing hardware on the tractor.
IMPORTANT: DO NOT use the values listed in
the charts if a different torque value or tightening
procedure is specified in this manual for a
specific application. Torque values listed are for
general use only.
Make sure fastener threads are clean and not
damaged
NOTE: A torque wrench is necessary to
properly tighten hardware.
MINIMUM HARDWARE TIGHTENING TORQUES
IN FOOT POUNDS (NEWTON-METERS) FOR NORMAL ASSEMBLY APPLICATIONS
METRIC HARDWARE AND LOCKNUTS
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)
NOMINAL
SIZE
CLASS 5.8
CLASS 8.8
CLASS 10.9
LOCKNUT
CL.8
w/CL8.8
BOLT
UNPLATED
PLATED
w/ZnCr
UNPLATED
UNPLATED
PLATED
w/ZnCr
PLATED
w/ZnCr
NOTE: Torque values shown with * are inch pounds.
IDENTIFICATION
HEX CAP SCREWS AND CARRIAGE BOLTS
CLASSES 5.6 AND UP.
MANUFACTURER’S IDENTIFICATION
PROPERTY CLASS
HEX NUTS AND LOCKNUTS
CLASSES 05 AND UP.
MANUFACTURER’S IDENTIFICATION
PROPERTY CLASS
CLOCK MARKING