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Torque Guide
Non Ferrous
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| BOLT SIZE |
18-8 S/S |
BRASS |
SILICON
BRONZE |
ALUMINUM
2024-T4 |
316 S/S |
MONEL |
| IN.-LBS. |
IN.-LBS. |
IN.-LBS. |
IN.-LBS. |
IN.-LBS. |
IN.-LBS. |
| 2-56 |
2.5 |
2.0 |
2.3 |
1.4 |
2.6 |
2.5 |
| 2-64 |
3.0 |
2.5 |
2.8 |
1.7 |
3.2 |
3.1 |
| 3-48 |
3.9 |
3.2 |
3.6 |
2.1 |
4.0 |
4.0 |
| 3-56 |
4.4 |
3.6 |
4.1 |
2.4 |
4.6 |
4. 5 |
| 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 |
|
FT.-LBS. |
FT.-LBS. |
FT.-LBS. |
FT.-LBS. |
FT.-LBS. |
FT.-LBS. |
| 1 1/8-7 |
413 |
337 |
383 |
265 |
432 |
499 |
| 1 1/8-12 |
390 |
318 |
361 |
251 |
408 |
470 |
| 1 1/4-7 |
523 |
428 |
485 |
336 |
546 |
627 |
| 1 1/4-12 |
480 |
394 |
447 |
308 |
504 |
575 |
| 1 1/2-6 |
888 |
727 |
822 |
570 |
930 |
1064 |
| 1 1/2-12 |
703 |
575 |
651 |
450 |
732 |
840 |
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Any user of this
information should be cautioned about using formula's for obtaining
torque-tension. Many variables in metal conditioning and
fastener formation can change the variable's used to determine
torque. While Marine Fasteners has used reliable sources
to determine the accuracy of the information above, the use
of this information is at the sole risk of the user. Marine Fasteners
is not responsible for any loss, damage, or claim from the use
of the above information. Source used for this chart
was taken from Fastener Technology Magazine December
1988. Another good source can be
found at www.engineersedge.com/torque.htm.
Another source to use for documentation is the Australian Stainless Steel
Development Association found
here.
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