TM 5-3810-307-24-2-1
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
Nm
Nm
Nm
ft-lb
ft-lb
ft-lb
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
18
720
530
570
420
1100
820
570
420
14
800
590
650
480
1200
890
650
480