Torque Specification - Jacobsen AR522 Safety, Operation And Maintenance Manual

8 ADJUSTMENTS
8.9

TORQUE SPECIFICATION___________________________________________________

All torque values included in these charts are approximate and are for reference only. Use of these torque values is
at your sole risk. Jacobsen is not responsible for any loss, claim, or damage arising from the use of these charts.
Extreme caution should always be used when using any torque value.
Jacobsen uses Grade 5 Plated bolts as standard, unless otherwise noted. For tightening plated bolts, use the value
given for lubricated.
AMERICAN NATIONAL STANDARD FASTENERS
SIZE UNITS
GRADE 5
Lubricated
#6-32 in-lb (Nm) –
#8-32 in-lb (Nm) –
#10-24 in-lb (Nm) –
#10-32 in-lb (Nm) –
#12-24 in-lb (Nm) –
1/4-20 in-lb (Nm) 75 (8.4)
1/4-28 in-lb (Nm) 85 (9.6)
5/16-18 in-lb (Nm) 157 (17.7)
5/16-24 in-lb (Nm) 173 (19.5)
3/8-16 ft-lb (Nm) 23 (31.1)
3/8-24 ft-lb (Nm) 26 (35.2)
METRIC FASTENERS
SIZE UNITS
Lubricated
M4 Nm (in-lb) –
M5 Nm (in-lb) 1.80 (16)
M6 Nm (in-lb) 3.05 (27)
M8 Nm (in-lb) 7.41 (65)
M10 Nm (ft-lb) 14.7 (11)
M12 Nm (ft-lb) 25.6 (19)
M14 Nm (ft-lb) 40.8 (30)
en-44
GRADE 8
Dry Lubricated
20 (2.3) –
24 (2.7) –
35 (4.0) –
40 (4.5) –
50 (5.7) –
100 (11.3) 107 (12.1)
115 (13.0) 120 (13.5)
210 (23.7) 220 (24.8)
230 (26.0) 245 (27.6)
31 (42.0) 32 (43.3)
35 (47.4) 37 (50.1)
4.6 8.8
Dry Lubricated
– –
2.40 (21) 4.63 (41)
4.07 (36) 7.87 (69)
9.98 (88) 19.1 (69)
19.6 (14) 37.8 (29)
34.1 (25) 66.0 (48)
54.3 (40) 105 (77)
NOTICE
SIZE UNITS
Dry
– 7/16-14 ft-lb (Nm)
30 (3.4) 7/16-20 ft-lb (Nm)
45 (5.1) 1/2-13 ft-lb (Nm)
50 (5.7) 1/2-20 ft-lb (Nm)
65 (7.3) 9/16-12 ft-lb (Nm)
143 (16.1) 9/16-18 ft-lb (Nm)
163 (18.4) 5/8-11 ft-lb (Nm)
305 (34.4) 5/8-18 ft-lb (Nm)
325 (36.7) 3/4-10 ft-lb (Nm)
44 (59.6) 3/4-16 ft-lb (Nm)
50 (67.8) 7/8-14 ft-lb (Nm)
10.9
Dry Lubricated
– – –
6.18 (54) 6.63 (59) 8.84 (78)
10.5 (93) 11.3 (102) 15.0 (133)
25.5 (226) 27.3 (241) 36.5 (323)
50.5 (37) 54.1 (40) 72.2 (53)
88.0 (65) 94.5 (70) 125 (92)
140 (103) 150 (110) 200 (147)
GRADE 5 GRADE 8
Lubri- Dry
cated
37 (50.1) 50 (67.8) 53 (71.8)
42 (56.9) 55 (74.6) 59 (80.0)
57 (77.2) 75 (101) 80 (108)
64 (86.7) 85 (115) 90 (122)
82 (111) 109 (148) 115 (156)
92 (124) 122 (165) 129 (174)
113 (153) 151 (204) 159 (215)
128 (173) 170 (230) 180 (244)
200 (271) 266 (360) 282 (382)
223 (302) 298 404 315 (427)
355 (481) 473 (641) 500 (678)
12.9
Dry Lubricated Dry
3.83 (34) 5.11 (45)
7.75 (68) 10.3 (910
13.2 (117) 17.6 (156)
32.0 (283) 42.6 (377)
63.3 (46) 84.4 (62)
110 (81) 147 (108)
175 (129) 234 (172)
Lubri- Dry
cated
70 (94.9)
78 (105)
107 (145)
120 (162)
154 (209)
172 (233)
211 (286)
240 (325)
376 (509)
420 (569)
668 (905)
Non Critical
Fasteners into
Aluminum
2.0 (18)
4.0 (35)
6.8 (60)
17.0 (150)
33.9 (25)
61.0 (45)
94.9 (70)