Hardware identification& TorqueSpecifications
Common | Hardware Types |
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Hex Head Capscrew |
| Washer | |
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| Lockwasher |
Carriage | Bolt |
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| [(((((((((((((((((((O | O | Hex Nut |
Standard Hardware Sizing
When a washer or nut is identified as 1/2", this is the Nominal size, meaning the inside diameter is 1/2 inch; if a second number is present it represent the threads per inch
When bolt or capscrew is identified as 1/2 - 16 x 2", this means the Nominal size, or body diameter is 1/2 inch; the second number represents the threads per inch (16 in this example, and the final number is the body length of the bolt or screw (in this example 2 inches long).
The guides and ruler furnished below are designed to
help you select the appropriate hardware and tools.
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Nut, 1/2"
Inside
Diameter
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m_ | Screw, | 1/2 x 2 _;- |
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m_ | Diameter( | B°dyL | / | |
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Torque Specification Chart
FOR STANDARD MACHINE HARDWARE (Tolerance + 20%)
_raarddeware | G |
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| SAE Grade2 | SAEGrade 5 | SAEGrade8 | |||
Size Of | in/Ibs |
| in/Ibs |
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Hardware | ft/I bs | Nm. | ft/Ibs | Nm. | ft/I bs | Nm. |
19 | 2.1 | 30 | 3.4 | 41 | 4.6 | |
20 | 2.3 | 31 | 3.5 | 43 | 4.9 | |
27 | 3.1 | 43 | 4.9 | 60 | 6.8 | |
31 | 3.5 | 49 | 5.5 | 68 | 7.7 | |
66 | 7.6 | 8 | 10.9 | 12 | 16.3 | |
76 | 8.6 | 10 | 13.6 | 14 | 19.0 | |
11 | 15.0 | 17 | 23.1 | 25 | 34.0 | |
12 | 16.3 | 19 | 25.8 | 27 | 34.0 | |
20 | 27.2 | 30 | 40.8 | 45 | 61.2 | |
23 | 31.3 | 35 | 47.6 | 50 | 68.0 | |
30 | 40.8 | 50 | 68.0 | 70 | 95.2 | |
35 | 47.6 | 55 | 74.8 | 80 | 108.8 | |
50 | 68.0 | 75 | 102.0 | 118 | 149.6 | |
55 | 74.8 | 90 | 122.4 | 128 | 163.2 | |
65 | 88.4 | 110 | 149.6 | 158 | 204.0 | |
75 | 102.0 | 120 | 163.2 | 178 | 231.2 | |
90 | 122.4 | 150 | 204.0 | 228 | 299.2 | |
100 | 136 | 180 | 244.8 | 248 | 326.4 | |
160 | 217.6 | 260 | 353.6 | 386 | 525.0 | |
180 | 244.8 | 300 | 408.0 | 428 | 571.2 | |
140 | 190.4 | 400 | 544.0 | 688 | 816.0 | |
155 | 210.8 | 440 | 598.4 | 668 | 897.6 | |
220 | 299.2 | 580 | 788.8 | 968 | 1,244.0 | |
240 | 326.4 | 640 | 870.4 | 1,088 | 1,360.0 |
NOTES
1. | These torque | values are to be used for all hardware |
| excluding: Iocknuts, | |
| screws, sheet metal screws and socket head setscrews. | |
2. | Recommended | seating torque values for Iocknuts: |
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_ength __@
a. | for prevailing torque | Iocknuts - use 65% of grade 5 |
| torques. |
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b. | for flange whizlock | nuts and screws - use 135% of |
| grade 5 torques. |
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3. Unless otherwise noted on assembly drawings, all torque |
values must meet this specification. |
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Wrench & Fastener Size Guide
1/4" Bolt | or Nut | 5/16" Bolt | or Nut | 3/8" Bolt or Nut | 7/16" | Bolt | or | Nut | 1/2" Bolt | or Nut |
7/16" | I/2" | Wrench | 5/8" | 3/4" | ||||||
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PTS - 36