TM 5-5420-234-14&P
CAPSCREW HEAD MARKINGS
NOTE
SAE GRADE
SAE GRADE
SAE GRADE
SAE GRADE
Manufacturer's marks may vary.
NO. 6 or 7
NO. 8
NO. 2
NO. 5
These are all SAE Grade 5.
DIAMETER
THREADS
PER INCH
IN.
MM
LBFT
NM
LBFT
NM
LBFT
NM
LBFT
NM
12
9
6
8
1/4
6.35
20
4
6
8
11
14
9
10
1/4
6.35
28
7
7
12
5
9
24
16
18
5/16
7.94
18
8
11
13
18
22
27
18
20
5/16
7.94
24
9
12
14
19
24
35
47
30
23
16
41
3/8
9.53
15
20
31
35
47
30
25
24
41
3/8
9.53
17
23
34
55
75
14
45
61
7/16
11.11
33
35
24
47
60
81
20
50
68
7/16
25
34
40
54
80
108
13
70
95
1/2
12.70
35
47
55
75
90
122
80
65
20
108
1/2
40
54
88
110
149
100
80
12
136
9/16
14.29
50
68
108
130
176
18
110
149
9/16
75
90
55
122
231
140
170
11
190
5/8
15.88
70
95
110
149
244
160
180
18
217
5/8
80
108
130
176
380
200
240
280
10
325
3/4
19.05
120
163
271
434
280
320
220
16
380
3/4
140
190
298
624
400
460
300
9
542
7/8
22.23
110
149
407
678
440
500
14
597
7/8
120
163
320
434
922
600
680
8
814
1
25.40
160
217
440
597
1003
480
660
740
12
895
1
170
231
651
1302
840
960
600
7
1139
1-1/8
25.58
220
298
814
1464
940
1080
660
12
1275
1-1/8
260
353
895
1844
1100
1360
7
1492
1-1/4
31.75
320
434
840
1139
2034
1320
1500
12
920
1790
1-1/4
360
488
1248
2414
1100
1560
1780
6
2115
1-3/8
34.93
420
570
1492
2766
1780
2040
1260
12
2414
1-3/8
460
624
1709
3200
2080
2360
1460
6
2820
1-1/2
38.10
560
760
1980
3607
2320
2660
12
1640
3146
1-1/2
620
841
2224
I-3
