Snapper 500Z Parts Manual - Page 48
Hardware Identification, Torque Specifications
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Hardware Identification & Torque Specifications Torque Specification Chart FOR STANDARD METRIC MACHINE HARDWARE (Tolerance ± 20%) Torque Specification Chart FOR STANDARD MACHINE HARDWARE (Tolerance ± 20%) Property Class 5.6 Class 5.6 8.8 Class 8.8 10.9 Class 10.9 12.9 Class 12.9 Hardware Grade No Marks SAE Grade 2 SAE Grade 5 SAE Grade 8 Size Of in/lbs in/lbs in/lbs in/lbs Hardware ft/lbs Nm. ft/lbs Nm. ft/lbs Nm. ft/lbs Nm. Size Of in/lbs in/lbs in/lbs Hardware ft/lbs Nm. ft/lbs Nm. ft/lbs Nm. M3 5.88 .56 13.44 1.28 19.2 1.80 22.92 2.15 M4 13.44 1.28 30.72 2.90 43.44 4.10 52.56 4.95 M5 26.4 2.50 60.96 5.75 5.97 8.10 7.15 9.7 M6 44.64 4.3 7.3 9.9 10.3 14 12.1 16.5 M7 5.2 7.1 12.1 16.5 16.9 23 19.9 27 M8 7.7 10.5 17.7 24 25 34 29 40 M10 15 21 35 48 50 67 59 81 M12 26 36 61 83 86.2 117 103 140 M14 42 58 101 132 136 185 162 220 M16 64 88 147 200 210 285 250 340 M18 89 121 202 275 287 390 346 470 M20 126 171 290 390 405 550 486 660 M22 169 230 390 530 559 745 656 890 M24 217 295 497 375 708 960 840 1140 M27 320 435 733 995 1032 1400 1239 1680 M30 435 590 995 1350 1401 1900 1681 2280 M33 590 800 1349 1830 1902 2580 2278 3090 M36 759 1030 1740 2360 2441 3310 2935 3980 M39 988 1340 2249 3050 3163 4290 3798 5150 The guides and ruler furnished below are designed to help you select the appropriate hardware. 0 10 20 30 40 50 60 70 80 90 100 Nut, M8 Body Length Body Diameter Screw, M8- 1.25 x 25 Thread Diameter (mm) Inside Threads Diameter (in) per inch Thread Diameter (mm) Body Diameter Distance between threads (mm) Threads per inch Body Length (mm) Body Length (in) Nut, 1/2-16 Screw, 1/2- 16 x 2 0 1/4 1/2 3/4 1 1/4 1/2 3/4 2 1/4 1/2 3/4 3 1/4 1/2 3/4 4 8-32 8-36 10-24 10-32 1/4-20 1/4-28 5/16-18 5/16-24 3/8-16 3/8-24 7/16-14 7/16-20 1/2-13 1/2-20 9/16-12 9/16-18 5/8-11 5/8-18 3/4-10 3/4-16 7/8-9 7/8-14 1-8 1-12 19 2.1 20 2.3 27 3.1 31 3.5 66 7.6 76 8.6 11 15.0 12 16.3 20 27.2 23 31.3 30 40.8 35 47.6 50 68.0 55 74.8 65 88.4 75 102.0 90 122.4 100 136 160 217.6 180 244.8 140 190.4 155 210.8 220 299.2 240 326.4 30 3.4 41 4.6 31 3.5 43 4.9 43 4.9 60 6.8 49 5.5 68 7.7 8 10.9 12 16.3 10 13.6 14 19.0 17 23.1 25 34.0 19 25.8 29 34.0 30 40.8 45 61.2 35 47.6 50 68.0 50 68.0 70 95.2 55 74.8 80 108.8 75 102.0 110 149.6 90 122.4 120 163.2 110 149.6 150 204.0 120 163.2 170 231.2 150 204.0 220 299.2 180 244.8 240 326.4 260 353.6 386 525.0 300 408.0 420 571.2 400 544.0 600 816.0 440 598.4 660 897.6 580 788.8 900 1,244.0 640 870.4 1,000 1,360.0 NOTES 1. These torque values are to be used for all hardware excluding: locknuts, self-tapping screws, thread forming screws, sheet metal screws and socket head setscrews. 2. Recommended seating torque values for locknuts: a. for prevailing torque locknuts - use 65% of grade 5 torques. b. for flange whizlock nuts and screws - use 135% of grade 5 torques. 3. Unless otherwise noted on assembly drawings, all torque values must meet this specification. Common Hardware Types Hex Head Capscrew Washer Standard Hardware Sizing When a washer or nut is identified as 1/2" (M8), this is the Nominal size, meaning the inside diameter is 1/2 inch (8mm metric thread diameter); if a second number is present it represents the threads per inch (distance between threads). Carriage Bolt Wrench & Fastener Size Guide Lockwasher Hex Nut When bolt or capscrew is identified as 1/2 - 16 x 2" (M8 - 1.25 x 50), this means the Nominal size, or body diameter is 1/2 inch (8mm metric thread diameter), the second number,16, represents the threads per inch, (distance between threads). The final number is the body length of the bolt or screw, 2 inches (50mm). 1/4" Bolt or Nut Wrench-7/16" M6 Bolt or Nut Wrench-10mm 5/16" Bolt or Nut Wrench-1/2" M8 Bolt or Nut Wrench-13mm 3/8" Bolt or Nut Wrench-9/16" M10 Bolt or Nut Wrench-17mm 7/16" Bolt or Nut 1/2" Bolt or Nut Wrench (Bolt)-5/8" Wrench-3/4" Wrench (Nut)-11/16" M12 Bolt or Nut Wrench-19mm M14 Bolt or Nut Wrench-22 mm