horsch SW 600, Owner'S Manual

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SW600 Owner’s Manual – Version 1.2 07/2018 87
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Bolt Tightening Torques – Imperial/Standard Bolts
Bolt tightening Torques - Imperial bolts (Ft. Lbs)
Bolt Diameter SAE Grade 2 SAE Grade 5 SAE Grade 8 L9
Size Thread Dry Lubed Dry Lubed Dry Lubed Lubed
1/4 20 66* 49* 8 75* 12 9 11
1/4 28 76* 56* 10 86* 14 10 13
5/16 18 11 8 17 13 20 18 21
5/16 24 12 9 19 14 25 20 23
3/8 16 20 15 30 23 45 30 33
3/8 24 23 17 35 25 50 35 38
7/16 14 30 24 50 35 70 55 60
7/16 20 35 25 55 40 80 60 65
1/2 13 50 35 75 55 110 80 95
1/2 20 55 40 90 65 120 90 105
9/16 12 65 50 110 80 150 110 140
9/16 18 75 55 120 90 170 130 150
5/8 11 90 70 150 110 220 170 185
5/8 18 100 80 180 130 240 180 205
3/4 10 160 120 260 200 380 280 290
3/4 16 180 140 300 220 420 320 355
7/8 9 190 140 400 300 600 460 505
7/8 14 210 155 440 320 660 500 585
1 8 220 160 580 440 900 680 775
1 14 240 170 640 480 1000 740 900
1 1/8 7 300 220 800 600 1280 960 1150
1 1/8 12 340 260 880 660 1440 1080 1325
1 1/4 7 420 320 1120 840 1820 1360 1600
1 1/4 12 460 360 1240 920 2000 1500 1750
1 3/8 6 560 420 1460 1100 2380 1780 --
1 3/8 12 640 460 1680 1260 2720 2040 --
1 1/2 6 740 560 1940 1460 3160 2360 3250
1 1/2 12 840 620 2200 1640 3560 2660 3650
NOTE: Items with (*) indicate torque in Inch/Pounds. All others in Foot/Pounds.
Do not use these values if a different torque value or tightening procedure is given for a specific
application. Torque values listed are for general use only. Check tightness of fasteners periodically.
Shear bolts are designed to fail under predetermined loads. Always replace shear bolts with identical
property class.