Yale 524150797

Table 6. Torque Values for Inch Fasteners* (Continued)
Size and Pitch
Grade 2
1
Grade 5
2
Grade 8
3
lbf ft N•m lbf ft N•m lbf ft N•m
1/2 1/2 13 UNC 20
UNF
37 41 50 56 57 85 77 115 80 90 110 120
9/16 9/16 12 UNC 18
UNF
53 59 72 80 82 91 110 125 115 130 155 175
5/8 5/8 11 UNC 18
UNF
73 83 99 110 115 130 155 175 160 180 215 245
3/4 3/4 10 UNC 16
UNF
130 145 175
195
200 225 270 300 280 315 380 425
7/8 7/8 9 UNC 14
UNF
125 140 170
185
320 355 435 480 455 500 615 680
1 1 8 UNC 14
UNF
185 210 255
285
485 540 655 735 680 765 925 1,040
1-1/8 1-1/8 7 UNC 12
UNF
265 300 360
405
595 670 805 905 965 1,080 1,310 1,470
1-1/4 1-1/4 7 UNC 12
UNF
375 415 510
565
840 930 1,140 1,260 1,360 1,500 1,850 2,050
1-3/8 1-3/8 6 UNC 12
UNF
490 560 665
760
1,100 1,250 1,490 1,700 1,780 2,040 2,420 2,760
1-1/2 1-1/2 6 UNC 12
UNF
650 735 885
995
1,460 1,650 1,980 2,230 2,370 2,670 3,210 3,620
* 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
8000 YRM 0231 General
9