Assembly
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Table 507. Examples - 77,500 psi Thread Root Stress
NOMINAL TORQUES FOR NUTS, BOLTS, SCREWS, AND FOR NUTS AND BOLTS INSTALLED ON KEY- OR RING- LOCKED STUDS OR INSERTS IN ALUMINUM OR STEEL 77,500 psi thread root stress 
SIZE  LOAD (LBS)  LOAD (N)  NUT TORQUE  BOLT TORQUE 
(IN-LBS)  (N-m)  (IN-LBS)  (N-m) 
2 -56  --- --- --- --- --- ---
4 -40  --- --- --- --- --- ---
6 -32  --- --- --- --- --- ---
8 -32  960  4270.272  30  3.3895440  37  4.1804376 
1--32  1400  6227.480  50  5.6492400  60  6.7790880 
1/4 -28  2590  11520.838  125  14.1231000  145  16.3827960 
5/16 - 24  4160  18504.512  245  27.6812760  275  31.0708200 
3/8 -24  6385  28401.757  455  51.4080840  500  56.4924000 
7/16 - 20  8615  38321.243  715  80.7841320  775  87.5632200 
1/2 -20  11715  52110.663  1115  125.9780520  1190  134.4519120 

Table 508. Examples - 62,000 psi Thread Root Stress
NOMINAL TORQUES FOR NUTS, BOLTS, SCREWS, AND FOR NUTS AND BOLTS INSTALLED ON KEY- OR RING- LOCKED STUDS OR INSERTS IN ALUMINUM OR STEEL 62,000 psi Thread Root Stress 
SIZE  LOAD (LBS)  LOAD (N)  NUT TORQUE  BOLT TORQUE 
(IN-LBS)  (N-m)  (IN-LBS)  (N-m) 
2 -56  --- --- --- --- --- ---
4 -40  --- --- --- --- --- ---
6 -32  --- --- --- --- --- ---
8 -32  770  3425.114  24  2.7116352  30  3.3895440 
1--32  1125  5004.225  40  4.5193920  50  5.6492400 
1/4 -28  2135  9496.907  100  11.2984800  120  13.5581760 
5/16 - 24  3330  14812.506  200  22.5969600  225  25.4215800 
3/8 -24  5110  22730.302  365  41.2394520  405  45.7588440 
7/16 - 20  6895  30670.339  575  64.9662600  630  71.1804240 
1/2 -20  9376  41706.323  890  100.5564720  970  109.5952560 
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Assembly
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Table 509. Examples - 41,875 psi Thread Root Stress
NOMINAL TORQUES FOR NUTS, BOLTS, SCREWS, AND FOR NUTS AND BOLTS INSTALLED ON KEY- OR RING- LOCKED STUDS OR INSERTS IN ALUMINUM OR STEEL 41,875 psi Thread Root Stress 
SIZE  LOAD (LBS)  LOAD (N)  NUT TORQUE  BOLT TORQUE 
(IN-LBS)  (N-m)  (IN-LBS)  (N-m) 
2 -56  142  631.644  2.5  0.2824620  4  0.4519392 
4 -40  210  934.122  5.0  0.5649240  7  0.7908936 
6 -32  325  1445.665  9.0  1.0168632  12  1.3558176 
8 -32  520  2313.064  16.0  1.8077568  22  2.4856656 
1--32  760  3380.632  27.0  3.0505896  35  3.9544680 
1/4 -28  1400  6227.480  66.0  7.4569968  80  9.0387840 
5/16 - 24  --- --- --- --- --- ---
3/8 -24  --- --- --- --- --- ---
7/16 - 20  --- --- --- --- --- ---
1/2 -20  --- --- --- --- --- ---

Assembly
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20-00-02/70-00-01

D.  Procedure - Preparing and Installing Fluid and Gasketed Fittings, and Special Metal and Conical Seals for Tubing and Hose Fittings.
　
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