Yale 524150797

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