SECTION 2
SPECIFICATIONS
TABLE 2-12. TORQUE SPECIFICATIONS FOR STANDARD HARDWARE.
SAE GRADE 5 CARBON STEEL CAPSCREWS
KILOGRAM-METERS (EUROPEAN)
FOOT-POUNDS (U.S.)
TORQUE
TORQUE
TORQUE
TORQUE
UNC
UNF
SIZE
SIZE
UNF
SIZE
UNC
UNC
UNF
UNF
UNC
SIZE
6
7
1/4
1/4
0.83
0.97
3/4
27.66
30.43
3/4
220
200
7/8
5/16
1.80
1.94
41.49
44.26
14
7/8
300
320
5/16
13
3/8
3.18
3.46
1
60.85
66.38
1
440
480
25
3/8
23
1-1/8
4.84
5.53
7/16
82.98
91.28
1-1/8
40
600
660
35
7/16
1.1/4
1/2
7.16
8.99
116.17
127.24
1-1/4
920
65
840
1/2
55
11.06
12.45
9/16
1-3/8
152.13
174.26
90
1.318
1100
1260
9/16
80
5/8
15.21
17.98
1-1/2
201.92
226.81
1-1/2
1460
1460
130
110
5/8
SAE GRADE 8 CARBON STEEL CAPSCREWS AND PLACEBOLTS
1/4
3/4
44.26
1.24
1.38
38.13
10
3/4
1/4
320
9
280
5/16
7/8
63.62
69.15
2.77
2.49
18
20
7/8
5/16
500
460
3/8
1
94.04
102.34
4.84
1
4.84
35
740
3/8
35
680
7/16
1-1/8
132.77
149.36
8.29
7.61
60
1-1/8
7/16
1080
960
55
1/2
1-1/4
207.45
12.45
188.08
1-1/4
1/2
11.06
90
80
1360
1500
9/16
1-3/8
246.17
282.13
17.98
9/16
15.21
130
1-3/8
1780
2040
110
5/8
1-1/2
24.89
23.51
326.39
356.81
1-1/2
170
180
5/8
2360
2660
NOTE This table lists torque values for standard hardware and is intended as a guide for average applications involving typical stresses
and machined surfaces. Values are based on the physical limitations of clean, plated and lubricated hardware. In all cases,
when an individual torque value is specified, it should take priority over values given in this table. Replace original equipment
with hardware of equal grade.
FIGURE 2-2. TYPES OF HARDWARE.
2-19
