TM 5-2420-230-24-2
Newton-Meter to Foot-Pound Conversion Chart
Section V - Engine Component Specifications - Group 18
Page V-40
B Series
Capscrew Markings and Torque Values - U.S. Customary
SAE Grade Number
5
8
Capscrew Head Markings
These are all SAE Grade 5 (3) line
Capscrew Torque - Grade 5 Capscrew
Capscrew Torque - Grade 8 Capscrew
Capscrew Body Size
Cast Iron
Aluminum
Cast Iron
Aluminum
Nm
ft-lb
Nm
ft-lb
Nm
ft-lb
Nm
ft-lb
1/4 -
20
9
7
8
6
15
11
8
6
-
28
12
9
9
7
18
13
9
7
5/16 -
18
20
15
16
12
30
22
16
12
-
24
23
17
19
14
33
24
19
14
3/8 -
16
40
30
25
20
55
40
25
20
-
24
40
30
35
25
60
45
35
25
7/16 -
14
60
45
45
35
90
65
45
35
-
20
65
50
55
40
95
70
55
40
1/2 -
13
95
70
75
55
130
95
75
55
-
20
100
75
80
60
150
110
80
60
9/16 -
12
135
100
110
80
190
140
110
80
-
18
150
110
115
85
210
155
115
85
5/8 -
11
180
135
150
110
255
190
150
110
-
18
210
155
160
120
290
215
160
120
3/4 -
10
325
240
255
190
460
340
255
190
-
16
365
270
285
210
515
380
285
210
7/8 -
9
490
360
380
280
745
550
380
280
-
14
530
390
420
310
825
610
420
310
1-
8
720
530
570
420
1100
820
570
420
-
14
800
590
650
480
1200
890
650
480
L-514
