Fastener Torque Tables - Yale 524150797 Maintenance Manual

General

FASTENER TORQUE TABLES

Size and Pitch
M3 × 0.5 M3.5 × 0.6 M4 ×
0.7 M5 × 0.8 M6 × 1
M8 × 1.25 M8 × 1 M10 ×
1.5 M10 × 1.25
M12 × 1.75 M12 × 1.25
M14 × 2 M14 × 1.5
M16 × 2 M16 × 1.5 M20 ×
2.5 M20 × 1.5
M24 × 3 M24 × 2 M27 × 3
M27 × 2
M30 × 3.5 M30 × 3 M30 ×
2 M33 × 3.5 M33 × 2
M36 × 4 M36 × 3 M39 × 4
M39 × 3
M42 × 4.5 M42 × 3 M45 ×
4.5 M45 × 3 M48 × 5 M48
× 3
* Unless otherwise specified
Approximately equal to Grade 8
Size and Pitch
1/4 1/4 20 UNC 28
UNF
5/16 5/16 18 UNC 24
UNF
3/8 3/8 16 UNC 24
UNF
7/16 7/16 14 UNC 20
UNF
* Unless otherwise specified
3
Property Class 8.8 Approximately equal to metric Property Class 10.9
8
Table 5. Torque Values for Metric Fasteners*
1
Property Class 5.8
N•m lbf ft
0.62 0.97 0.5 0.7 1.1
1.44 2.91 2.1 3.6
4.94
12.0 12.8 9 9 18 19
23.8 25.1
41.4 45.3 31 33 49 53
66 72
105 110 200 77 81 150
225 165
345 375 255 275
505 550 370 405
690 715 510 530
765 940 565 695
1,030 760
1,200 1,280 885 945
1,560 1,640 1,150 1,210
1,930 2,070 1,430 1,530
2,410 2,580 1,780 1,910
2,900 3,160 2,140 2,330
1
Approximately equal to Grade 2
Table 6. Torque Values for Inch Fasteners*
1
Grade 2
lbf ft N•m
4 5 6 6
8 9 11 13
15 17 20 23
24 27 33 36
1
Approximately equal to metric Property Class 5.8
2
Grade 8.8
N•m lbf ft
0.99 1.55 0.7 1.1 2.1
2.30 4.65 3.6 6
7.90
19.2 20.5 14 15 28 30
38.0 40.1
66 72 105 49 53 77 85
115
165 175 122 130
320 355 235 260
555 605 410 445
810 875 600 645
1,100 1,140 810 840
1,220 1,500 900 1,100
1,640 1,210
1,930 2,040 1,430 1,510
2,490 2,630 1,840 1,940
3,080 3,320 2,280 2,450
3,850 4,120 2,840 3,040
4,630 5,040 3,420 3,720
2
Approximately equal to Grade 5
2
Grade 5
lbf ft N•m
6 7 9 10
13 14 18 20
23 26 31 36
37 41 50 56
2
8000 YRM 0231
3
Grade 10.9
N•m lbf ft
1.34 2.11 1.0 1.6 2.3
3.13 6.33 4.7 8
10.8
26.1 27.9 19 21 38 41
52 55
90 98 145 66 72 105
155 115
225 240 165 175
435 485 320 360
755 820 560 605
1,100 1,190 810 880
1,500 1,550 1,100 1,140
1,660 2,040 1,230 1,510
2,240 1,660
2,620 2,780 1,940 2,050
3,390 3,570 2,500 2,640
4,200 4,510 3,100 3,330
5,240 5,610 3,870 4,140
6,300 6,860 4,650 5,060
3
3
Grade 8
lbf ft N•m
9 10 12 14
18 20 25 28
33 37 44 50
52 58 71 79
Approximately equal to metric