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SECTION VI – MISCELLANEOUS CHARTS AND FORMULAS
TORQUE VALUES
BOLT SIZE
18-8 S/S
IN.-LBS.
BRASS
IN.-LBS.
SILICON
BRONZE
IN.-LBS.
ALUMINUM
2024-T4
IN.-LBS.
316 S/S
IN.-LBS.
MONEL
IN.-LBS.
4-40
5.2 4.3 4.8 2.9 5.5 5.3
4-48 6.6 5.4 6.1 3.6 6.9 6.7
5-40 7.7 6.3 7.1 4.2 8.1 7.8
5-44 9.4 7.7 8.7 5.1 9.8 9.6
6-32 9.6 7.9 8.9 5.3 10.1 9.8
6-40 12.1 9.9 11.2 6.6 12.7 12.3
8-32 19.8 16.2 18.4 10.8 20.7 20.2
8-36 22.0 18.0 20.4 12.0 23.0 22.4
10-24 22.8 18.6 21.2 13.8 23.8 25.9
10-32 31.7 25.9 29.3 19.2 33.1 34.9
1/4-20 75.2 61.5 68.8 45.6 78.8 85.3
1/4-28 94.0 77.0 87.0 57.0 99.0 106.0
5/16-18 132 107 123 80 138 149
5/16-24 142 116 131 86 147 160
3/8-16 236 192 219 143 247 266
3/8-24 259 212 240 157 271 294
7/16-14 376 317 349 228 393 427
7/16-20 400 327 371 242 418 451
1/2-13 517 422 480 313 542 584
1/2-20 541 443 502 328 565 613
9/16-12 682 558 632 413 713 774
9/16-18 752 615 697 456 787 855
5/8-11 1110 907 1030 715 1160 1330
5/8-18 1244 1016 1154 798 1301 1482
3/4-10 1530 1249 1416 980 1582 1832
3/4-16 1490 1220 1382 958 1558 1790
7/8-9 2328 1905 2140 1495 2430 2775
7/8-14 2318 1895 2130 1490 2420 2755
1-8 3440 2815 3185 2205 3595 4130
1-14 3110 2545 2885 1995 3250 3730