20
TORQUE SPECIFICATIONS CHART
(HEX HEAD CAP SCREWS)
Grade 5
Grade 8
Nominal Dia.
Threads Per
Inch
Ft. Lbs.
Ft. Lbs.
3/8 16
24
36 - 42
41 - 47
42 - 48
48 - 54
7/16 14
20
54 - 62
65 - 73
63 - 71
76 - 84
1/2 13
20
80 - 90
100 - 110
100 - 110
120 - 130
9/16 12
18
105 - 115
125 - 135
125 - 135
150 - 160
5/8 11
18
170 - 180
195 - 205
200 - 210
230 - 240
3/4 10
16
285 - 295
340 - 350
330 - 340
400 - 410
7/8 9
14
495 - 505
580 - 595
580 - 595
685 - 700
1 8
14
685 - 700
825 - 840
805 - 820
965 - 980
1-1/8 7
12
1045 - 1060
1240 - 1260
1500 - 1525
1680 – 1705