Gener
al Inf
o
rmat
ion and S
p
ecif
ica
ti
ons
2.4
3507,
3508
, 3509,
3512,
3513,
4007,
4008,
4009,
4012,
4013
2.
2.
2
ASTM
F
aste
ner T
o
rque
Char
t (Met
ri
c)
VALUES FOR ZINC PLATED / YELLOW CHROMATE FASTENERS ONLY
UNPLATED CAP SCREWS
SAE GRADE 5 BOLTS &
GRADE 2 NUTS
SAE GRADE 8 BOLTS & GRADE 8 NUTS
& SOCKET HEAD CAP SCREWS
UNBRAKO 1960 SERIES
SOCKET HEAD
SIZE
THDS.
PER
INCH
BOLT
DIA.
TENSILE
STRESS
AREA
CLAMP
LOAD
TORQUE
CLAMP
LOAD
TORQUE
CLAMP
LOAD
TORQUE
DRY OR
LOCTITE
263
LUB
LOCTITE
262
LOCTITE
242 OR
271
DRY OR
LOCTITE
263
LUB
LOCTITE
262
LOCTITE
242 OR
271
WITHOUT
LOC-WEL
PATCH
WITH
LOC-WEL
PATCH
IN
SQ. IN.
LB.
N, m
N, m
N, m
N, m
LB.
N, m
N, m
N, m
N, m
LB.
N, m
N, m
4
40
0.1120
0.00604
380
.8
.8
—
—
540
1.4
1.0
—
—
—
—
—
48
0.00661
420
1.0
.8
—
—
600
1.5
1.0
—
—
—
—
—
6
32
0.1380
0.00909
580
1.8
1.4
—
—
820
2.6
2.0
—
—
—
—
—
40
0.01015
610
2.0
1.6
—
—
920
2.8
2.2
—
—
—
—
—
8
32
0.1640
0.01400
900
3.4
2.4
—
—
1260
4.6
3.4
—
—
—
—
—
36
0.01474
940
3.4
2.6
—
—
1320
5
3.6
—
—
—
—
—
10
24
0.1900
0.01750
1120
5
3.6
—
—
1580
7
5
—
—
—
—
—
32
0.02000
1285
6
4
—
—
1800
8
6
—
—
—
—
—
1/4
20
0.2500
0.0318
2020
11
8
—
12
2860
16
12
—
18
3180
18
19
28
0.0364
2320
14
10
—
15
3280
19
14
—
21
3640
19
20
IN
SQ. IN.
LB.
N, m
N, m
N, m
N, m
LB.
N, m
N, m
N, m
N, m
LB.
N, m
N, m
5/16
18
0.3125
0.0524
3340
23
18
22
26
4720
34
24
30
41
5240
34
38
24
0.0580
3700
26
19
23
28
5220
34
27
34
41
5800
37
41
3/8
16
0.3750
0.0775
4940
41
31
38
47
7000
61
47
54
68
7750
61
68
24
0.0878
5600
47
34
43
54
7900
68
47
61
75
8780
68
75
7/16
14
0.4375
0.1063
6800
68
47
61
75
9550
95
75
85
108
10630
95
104
20
0.1187
7550
75
54
68
81
10700
108
81
95
122
11870
102
111
1/2
13
0.5000
0.1419
9050
102
75
92
115
12750
149
108
130
163
14190
149
163
20
0.1599
10700
122
88
108
136
14400
163
122
146
183
15990
156
172
9/16
12
0.5625
0.1820
11600
149
108
133
163
16400
203
149
188
224
18200
210
230
18
0.2030
12950
163
122
148
183
18250
230
176
209
258
20300
224
247
5/8
11
0.6250
0.2260
14400
203
149
183
224
20350
298
230
244
325
22600
285
313
18
0.2560
16300
230
176
207
258
23000
325
244
277
359
25600
298
328
3/4
10
0.7500
0.3340
21300
353
271
325
386
30100
515
380
408
569
33400
495
542
16
0.3730
23800
407
298
363
447
33600
569
434
456
630
37300
542
597
7/8
9
0.8750
0.4620
29400
583
434
523
644
41600
813
624
658
895
46200
793
874
14
0.5090
32400
637
475
576
705
45800
895
678
724
983
50900
861
949
1
8
1.0000
0.6060
38600
868
651
785
915
51500
1220
922
931
1342
60600
1173
1288
12
0.6630
42200
949
719
858
997
59700
1356
1003
1079
1491
66300
1241
1356
1-1/8
7
1.1250
0.7630
42300
1085
813
968
1139
68700
1735
1302
1396
1898
76300
1681
1851
12
0.8560
47500
1193
895
1087
1254
77000
1952
1464
1566
2135
85600
1871
2061
1-1/4
7
1.2500
0.9690
53800
1518
1139
1368
1593
87200
2468
1844
1970
2712
96900
2373
2610
12
1.0730
59600
1681
1247
1516
1763
96600
2712
2034
2183
2983
107300
2549
2807
1-3/8
6
1.3750
1.1550
64100
1979
1491
1792
2068
104000
3227
2413
2586
3559
115500
3145
3457
12
1.3150
73000
2278
1708
2042
2373
118100
3688
2766
2935
4067
131500
3308
3640
1-1/2
6
1.5000
1.4050
78000
2630
1979
2379
2745
126500
4284
3200
3430
4711
140500
4122
4535
12
1.5800
87700
2983
2224
2676
3118
142200
4827
3606
3856
5322
158000
4433
4881
Note: These torque values do not apply to cadmium plated fasteners.