Barko 295B - Page 38

13-16
®
GENERAL TORQUE SPECS (continued...)
DRY & LUBRICATED
Ÿ A dry condition bolt or nut is considered a fastener that is free of rust or other
debris and doesn't have any external lubrication added by the end user.
Ÿ A lubricated bolt or nut is considered a fastener that is free of rust or other
debris and has a suitable lubricant (grease, oil, anti-seize, thread locker), added
before assembly.
UNC HHCS BOLT TORQUE (COARSE THREAD)
UNF HHCS BOLT TORQUE (FINE THREAD)
Threads
ft-lb N-m ft-lb N-m ft-lb N-m ft-lb N-m ft-lb N-m ft-lb N-m
1/4 28 10 14 6 8 14 19 9 12 19 26 12
16
5/16 24
20 27 12 16 27 37 17 23 37 50 22
30
3/8 24
35 47 21 28 49 66 30 41 68 92 41
56
7/16 20
55 75 33 45 78 106 47 64 108 146 65
88
1/2 20
85 115 51 69 120 163 72 98 165 224 100
136
9/16 18
120 163 72 98 171 232 102 138 235 319 140
190
5/8 18
170 230 100 136 240 325 144 195 330 447 200
271
3/4 16
300 407 180 244 420 569 252 342 575 780 345
468
7/8 14
435 590 260 353 668 906 400 542 980 1329 590
800
1 14
650 881 390 529 995 1349 597 809 1350 1830 810
1098
1 1/8 12
900 1220 540 732 1444 1958 866 1174 1950 2644 1170
1586
1 1/4 12
1240 1681 745 1010 2012 2728 1207 1636 2750 3728 1650
2237
1 3/8 12
1670 2264 1000 1356 2712 3677 1627 2206 3700 5017 2220
3010
1 1/2 12
2200 2983 1320 1790 3557 4823 2134 2893 4850 6576 2900
3932
Lubricated
UNF
Grade 5
Grade 8
Grade 9
per Inch
Dry
Lubricated
Dry
Lubricated
Dry
Threads
ft-lb N-m ft-lb N-m ft-lb N-m ft-lb N-m ft-lb N-m ft-lb N-m
1/4 20 9 12 5 7 12 16 7 9 17 23 10
14
5/16 18
17 23 10 14 25 34 15 20 34 46 20
27
3/8 16
31 42 19 26 44 60 26 35 60 81 36
49
7/16 14
50 68 30 41 70 95 42 57 96 130 58
79
1/2 13
75 102 45 61 107 145 64 87 145 197 87
118
9/16 12
110 149 66 89 154 209 92 125 210 285 125
169
5/8 11
150 203 90 122 212 287 127 172 290 393 175
237
3/4 10
265 359 160 217 376 510 226 306 515 698 310
420
7/8 9
400 542 24 33 606 822 364 494 830 1125 500
678
1 8
600 813 360 488 909 1232 545 739 1250 1695 750
1017
1
1/8 7
800 1085 480 651 1288 1746 773 1048 1760 2386 1050
1424
1 1/4 7
1120 1519 670 908 1817 2464 1090 1478 2500 3390 1500
2034
1 3/8 6
1470 1993 880 1193 2382 3230 1430 1939 3250 4406 1950
2644
1 1/2 6
1950 2644 1170 1586 3161 4286 1897 2572 4350 5898 2600
3525
Grade 9
Dry
Lubricated
Dry
Lubricated
UNC
Dry
Lubricated
Grade 5
Grade 8
per Inch
NOTICE
07/26/2018
Updated
OPERATOR’S