Torque Specifications
Teledyne Continental Motors, Inc.
TM
B-6
IOF-550 Permold Series Engine Maintenance Manual
1 April 2007
Table B-1.
General Torque Specifications
Bolts, Nuts, Screws
Size
Torque
Dec.
In.
In/Lb.
Ft/Lb.
#8-32
-32
17.5 - 22.5
1.5 - 1.9
#10-32
-32
36 - 50
3.0 - 4.2
#10-24
-24
21 - 25
1.7 - 2.0
.250 - 20
1/4
75 - 85
6.3 - 7.1
.250 - 28
1/4-28
90 - 100
7.5 – 8.3
.3125 - 18
5/16-18
155 - 175
12.9 - 14.6
.3125 - 24
5/16-24
180 - 220
15.0 - 18.3
.375 - 16
3/8-16
220 - 260
18.3 - 21.7
.375 - 24
3/8-24
275 - 325
22.9 - 27.1
.44 - 20
7/16-20
400 - 450
33.3 - 37.5
.50 - 20
1/2-20
550 - 600
45.8 - 50.0
Driving Studs
.250 - 20
1/4
50 - 70
4.2 - 5.8
.3125 - 18
5/16-18
100 - 150
8.3 - 12.5
.375 - 16
3/8-16
200 - 275
16.7 - 22.9
.44 - 14
7/16-14
300 - 425
25.0 - 35.4
Pipe Plugs
.062 - 27
1/16-27
30 - 40
2.5 - 3.3
.125 - 27
1/8-27
60 - 80
5.0 - 6.7
.250 - 18
1/4-18
130 - 150
10.8 - 12.5
.375 - 18
3/8-18
185 - 215
15.4 - 18.0
.500 - 14
1/2-14
255 - 285
21.3 - 23.8
.750 - 14
3/4-14
310 - 350
25.8 - 29.2