PART 8: MAINTENANCE AND SERVICE FASTENERS
(R05/10) Y53-6032 – 209 –
Standard Capscrew Torque Specifications
The torque values in the previous tables are based on the
use of clean and dry threads.
Table 15 Capscrew Torque Specifications
SAE Grade
Number
58
Capscrew
Body Size
(inches-
thread)
Torque Torque
Lb. ft. N.m. Lb. ft. N.m.
1/4-20 6 - 9 8 - 12 9 - 12 12 - 16
-28 7 - 10 9.5 - 14 10 - 14 14 - 19
5/16-18 13 - 18 18 - 24 18 - 25 24 - 34
-24 14 - 20 19 - 27 20 - 28 27 - 38
3/8-16 22 - 32 30 - 43 31 - 44 42 - 60
-24 25 - 40 34 - 54 35 - 50 47 - 68
7/16-14 35 - 50 47 - 68 50 - 71 68 - 96
-20 39 - 56 53 - 76 56 - 80 76 - 108
1/2-13 54 - 77 73 - 104 76 - 109 103 - 149
-20 58 - 87 79 - 118 86 - 123 117 - 167
9/16-12 78 - 111 105 - 151 110 - 158 149 - 214
-18 87 - 124 118 - 168 123 - 176 167 - 239
5/8-11 108 - 154 147 - 209 153 - 218 208 - 296
-18 122 - 174 166 - 236 173 - 247 235 - 335
3/4-10 192 - 273 260 - 370 271 - 386 367 - 523
-16 214 - 305 290 - 414 303 - 431 411 - 583
7/8-9 309 - 441 419 - 598 437 - 624 593 - 846
-14 341 - 486 462 - 659 482 - 589 654 - 799
1 -8 464 - 662 629 - 898 656 - 935 889 - 1268
1-12 508 - 724 689 - 982 718 - 1023 973 - 1386
Table 15 Capscrew Torque Specifications (Continued)
SAE Grade
Number
58
Y53-6032.book Page 209 Monday, May 24, 2010 3:37 PM
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