Torque Values For Hex Screws - Bolens DuraTrac DGT 1800 Service Manual

5100 SERIES
TRACTOR
PAGE 1-6 Rev.3/92
GENERAL (Continued)
TORQUE VALUES FOR CAP SCREWS
0
G
®
\
SIZE SAEGRADE2 SAEGRADE5 SAEGRADES
Lb. ln. Nm Kgm Lb. In Nm Kgm Lb. Ins
Nm
1/4-20
49
5.5
0.6 75 8.5 0.9 108 12.2
1/4-28 56 6.3 0.6 86 9.7 1.0 120
13.6
Lb.
Ft.
Nm Kgm Lb. Ft. Nm Kgm Lb. Ft.
Nm
5/16-18
8
10.8 1.1
13 17.6 1.8 18 24.4
5/16-24 9 12.2 1.2 14 18.9 1.9
20
27.1
3/8-16 15 20.3 2.0 23 31.2 3.1 35 47.4
3/8-24 17 20.3 2.3 25 . 33.9 3.4
35 47.4
7/16·14 24 32.5 3.3
35 47.4 4.8 55
74.5 .
7/16·20 25 33.9 3.4 40 54.2 5.5
60 81.3
1/2-13
35
47.4
4.8 55 74.5 7.6 80 108.4
1/2-20 40 54.2 5.5 65 88.1 9.0
90 122.0
9/16-12 55 74.5
7.6 80 108.4 11.0 110 149.1
9/16-18
60
81.3
8.3
90
122.0
12.4 130 176.2
5/8-11
75 101.6 10.3 110 149.1 15.2 170
230.4
5/8-18 85 115.2 11.7 130
176.2 18.0 180 243.9
3/4-10-
130 176.2 18.0
200 271.0 27.7 280 379.4
3/4-16
145 196.5 20.0
220 298.1 30.4 320 433.6
7/8-9
125 169.4 17.3 320
433.6 44.3 460 623.3
7/8-14 140 189.7 19.3
350 474.3 48.4 500 677.5
1-8 190 257.7
26.3 480 650.4 66.5
680 921.4
1-12
200 271.0 27.7
530 718.2 73.4- 740
1002.7
Conversion Formula: To obtain Nm multiply ft. lbs. by 1.355.
To obtain Kgm multiply fl.lbs. by 0.138.
All torques± 1 0% unless otherwise specified.
All torque values are for capscrews that have been lubricated with engine oil or grease.
Multiply Standard assembly torque by the following factors:
A. 1.25 when threads are dry
B. 0.85 when parts are plated
C. 0.75 when parts are parkerized
D. 0.70 when parts are coated with Molykote
E. 0.65 for jam nuts
Kgm
1.2
1.4
Kgm
2.4
2.7
4.8
4.8
7.6
8.3
)
11.0
12.4
15.2
18.0
23.5
24.9
24.9
44.3
63.7
69.2
94.2
102.5