Poulan P61ZXT Owner Manual - Page 35
Torque Specifications, HEX HEAD CAP SCREWS, U.S. Standard Hardware, Shank Size
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TECHNICAL DATA Torque Specifications Engine crankshaft bolt Deck pulley bolts Lug nuts Blade bolt 50 ft/lb 150 ft/lb 75 ft/lb 90 ft/lb Standard 1/4" fasteners Standard 5/16" fasteners Standard 3/8" fasteners Standard 7/16" fasteners Standard 1/2" fasteners 9 ft/lb 18 ft/lb 33 ft/lb 52 ft/lb 80 ft/lb HEX HEAD CAP SCREWS The torque values shown must be used as a general guideline when specific torque values are not given. U.S. Standard Hardware Grade SAE Grade 5 SAE Grade 8 Flangelock Screw w/Flangelock Nut Shank Size (Diameter in inches, fine or coarse thread) Size ft./lbs Nm ft./lbs Nm ft./lbs Nm 1/4 9 12 13 18 5/16 18 24 28 38 24 33 3/8 31 42 46 62 40 54 7/16 50 68 75 102 1/2 75 102 115 156 9/16 110 149 165 224 5/8 150 203 225 305 3/4 250 339 370 502 7/8 378 512 591 801 1-1/8 782 1060 1410 1912 ** Grade 5 - Minimum commercial quality (lower quality not recommended) Metric Standard Hardware Grade Grade 8.8 Size ft./lbs Nm Shank Size (Diameter in millimeters, fine or coarse thread) M4 1.5 2 M5 3 4 M6 5.2 7 M7 8.2 11 M8 13.5 18 M10 24 33 M12 43.5 59 M14 70.5 96 M16 108 146 M18 142 193 M20 195 264 M22 276 374 M24 353 478 M27 530 719 Grade 10.9 ft./lbs Nm 2.2 3 4.5 6 7.5 10 12 16 18.8 25 35.2 48 62.2 84 100 136 147 199 202 274 275 373 390 529 498 675 735 996 Grade 12.9 ft./lbs Nm 2.7 3.7 5.2 7 8.2 11 15 20 21.8 30 43.5 59 75 102 119 161 176 239 242 328 330 447 471 639 596 808 904 1226 35