Maeda MC-305C-2 - Accessory Tools; Standard Tightening Torque List

4-8
6. ACCESSORY TOOLS AND
STANDARD TIGHTENING TORQUE
6.1 ACCESSORY TOOLS
Contact us or our sales service agency to request a tool for inspection and maintenance, when necessary.
6.2 STANDARD TIGHTENING TORQUE LIST
Torque the metric bolts and nuts with no specific indication to a values
shown in this table.
Adequate tightening torque is determined with respect to a width across flat
(b) of a bolt or nut.
[Table 1]
Nominal
size
(a; mm)
Width
across flat
(b; mm)
[1] Bolt marked with “8.8” (strength
classification) on its head
[2] Bolt marked with “10.9” (strength
classification) on its head
Tightening torque {N▪m (kgf▪m)} Tightening torque {N▪m (kgf▪m)}
Target value Tolerance Target value Tolerance
6 10 7.8 (0.80) 6.8-9.0 (0.70-0.92) 11.0 (1.1) 9.4-12.7 (0.93-1.26)
8 13 19.0 (1.95) 16.5-21.9 (1.70-2.24) 27.0 (2.7) 23.0-31.1 (2.3-3.10)
10 17 37.5 (3.85) 32.6-43.1 (3.35-4.43) 53.0 (5.4) 45.0-61.0 (4.6-6.21)
12 19 65.5 (6.70) 57.0-75.3 (5.85-7.70) 93.0 (9.5) 79.0-107 (8.10-10.9)
14 22 104 (10.6) 90.4-120 (9.2-12.2) 148 (15.1) 126-170 (12.8-17.4)
16 24 163 (16.6) 142-187 (14.4-19.1) 231 (23.5) 196-266 (20.0-27.0)
18 27 224 (22.8) 195-258 (19.8-26.2) 317 (32.3) 269-365 (27.5-37.1)
20 30 318 (32.4) 277-366 (28.2-37.3) 450 (45.9) 383-518 (39.0-52.8)
22 32 432 (44.0) 376-497 (38.3-50.6) 612 (62.4) 520-704 (53.0-71.8)
24 36 549 (56.0) 477-631 (48.7-64.4) 778 (79.3) 661-895 (67.4-91.2)
27 41 804 (81.9) 699-925 (71.2-94.2) 1130 (116) 961-1300 (98.6-133)
30 46 1090 (111) 948-1250 (96.5-128) 1540 (158) 1310-1770 (134-182)
33 50 1485 (151) 1290-1710 (131-174) 2100 (214) 1790-2410 (182-246)
36 55 1910 (194) 1660-2200 (167-223) 2700 (275) 2300-3100 (234-316)