FMI PTW72, Manual, Page: 32 / 335

FMI equipment. Maintenance from time to time should check the fabricator for loose
bolts, especially parts subjected to severe shock.
Size SAE Grade 5 SAE Grade 8
Clamp
Load Assembly Torque Clamp
Load Assembly Torque
Dry Lbs Wet Lbs Dry
Lbs Wet Lbs
1/4-20 2000 8 Ft 75 In 2850 12 Ft 9 Ft
1/4-28 2300 10 Ft 86 In 3250 14 Ft 10 Ft
5/16-18 3350 17 Ft 13 Ft 4700 25 Ft 18 Ft
5/16-24 3700 19 14 5200 25 20
3/8-16 4950 30 23 7000 45 35
3/8-24 5600 35 25 7900 50 35
7/16-14 6800 50 35 9550 70 55
7/16-20 7600 55 40 10650 80 60
1/2-13 9000 75 55 12750 110 80
1/2-20 10250 90 65 14375 120 90
9/16-12 11600 110 80 16375 150 110
9/16-18 13000 120 90 18250 170 130
5/8-11
14400 150 110 20350 220 170
5/8-18 16375 180 130 23000 240 180
3/4-10 21300 260 200 30100 380 280
3/4-16 23800 300 220 33500 420 320
7/8-9 29450 430 320 41600 600 460
7/8-14 32450 470 360 45900 660 500
1-8 38600 640 480 54500 900 680
1-12 42300 710 530 59700 1000 740
1-14 43400 730 540 61200 1020 760
1 1/8-7 42300 800 600 68900 1280 960
1 1/8-12 47500 880 660 77000 1440 1080
1 1/4-7 53800 1120 840
87200 1820 1360
1 1/4-11 59600 1240 920 96600 2000 1500
Note: All torque load values are in Foot Pounds except those noted otherwise. 1/4"
Bolts - Grade 5 ONLY are shown in Inch Pounds.
Summary of Maintenance Intervals
27