3208 Marine Engine English (SAE) Fasteners Caterpillar


English (SAE) Fasteners
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1.1. English (SAE) Nuts and Bolts
2.1. English (SAE) Machine Screws
3.1. Hex Button Head Screw and Set Screws

English (SAE) Nuts and Bolts



Illustration 1g00908911

Table 1
Thread Size
Inch 
Torque 
1/4  12 ± 3 N·m (105 ± 27 lb in) 
5/16  25 ± 6 N·m (220 ± 53 lb in) 
3/8  47 ± 9 N·m (35 ± 7 lb ft) 
7/16  70 ± 15 N·m (50 ± 11 lb ft) 
1/2  105 ± 20 N·m (75 ± 15 lb ft) 
9/16  160 ± 30 N·m (120 ± 22 lb ft) 
5/8  215 ± 40 N·m (160 ± 30 lb ft) 
3/4  370 ± 50 N·m (275 ± 37 lb ft) 
7/8  620 ± 80 N·m (460 ± 60 lb ft) 
900 ± 100 N·m (660 ± 75 lb ft) 
1 1/8  1300 ± 150 N·m (960 ± 110 lb ft) 
1 1/4  1800 ± 200 N·m (1320 ± 150 lb ft) 
1 3/8  2400 ± 300 N·m (1780 ± 220 lb ft) 
1 1/2  3100 ± 350 N·m (2280 ± 260 lb ft) 

English (SAE) Machine Screws



Illustration 2g00908932

Table 2
Thread Size
No. 
Torque 
No. 4 (.112)  0.50 ± 0.10 N·m (4.4 ± 0.9 lb in) 
No. 5 (.125)  0.70 ± 0.15 N·m (6.2 ± 1.3 lb in) 
No. 6 (.138)  0.90 ± 0.20 N·m (8.0 ± 1.8 lb in) 
No. 8 (.164)  1.70 ± 0.40 N·m (15.0 ± 3.5 lb in) 
No. 10 (.190)  2.30 ± 0.50 N·m (20.4 ± 4.4 lb in) 
No 12 (.216)  3.40 ± 0.70 N·m (30.1 ± 6.2 lb in) 

Hex Button Head Screw and Set Screws



Illustration 3g01186972

Table 3
Thread Size
inch 
Torque 
# 4 & #5  .6 ± .1 N·m (5 ± 0.9 lb in) 
#6 & #8  2 ± .3 N·m (18 ± 3 lb in) 
#10 & #12  4 ± .5 N·m (35 ± 4 lb in) 
1/4  6 ± 1 N·m (55 ± 9 lb in) 
5/16  13 ± 3 N·m (115 ± 27 lb in) 
3/8  25 ± 6 N·m (220 ± 53 lb in) 
7/16  40 ± 8 N·m (20 ± 6 lb ft) 
1/2  60 ± 12 N·m (44 ± 9 lb ft) 
9/16  85 ± 15 N·m (65 ± 11 lb ft) 
5/8  115 ± 20 N·m (85 ± 15 lb ft) 
3/4  200 ± 40 N·m (150 ± 30 lb ft) 
7/8  325 ± 40 N·m (240 ± 30 lb ft) 
500 ± 65 N·m (370 ± 48 lb ft) 
1 1/8  700 ± 90 N·m (520 ± 65 lb ft) 
1 1/4  1000 ± 125 N·m (740 ± 90 lb ft) 
1 3/8  1300 ± 150 N·m (960 ± 110 lb ft) 
1 1/2  1700 ± 200 N·m (1260 ± 150 lb ft) 

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