ASTM F436 Round Structural Washers (ASTM F436) | ||||||
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Bolt Size |
Outside Diameter (OD) |
Inside Diameter (ID) |
Thickness(TH) |
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Max | Min | Max | Min | Max | Min | |
1/2 | 1.094 | 1.031 | .562 | .531 | .177 | .097 |
5/8 | 1.344 | 1.281 | .719 | .687 | .177 | .122 |
3/4 | 1.500 | 1.438 | .843 | .812 | .177 | .122 |
7/8 | 1.781 | 1.719 | .969 | .938 | .177 | .136 |
1 | 2.031 | 1.969 | 1.156 | 1.125 | .177 | .136 |
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Applications/ Advantages |
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Structural washers made from steel is of the following for chemical composition requirements: Phosphorous- 0.050% ; Sulfur-0.060%. |
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Hardness |
Rockwell C38-45 |
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Plating |
Usually structural washers are plain or furnished with a galvanized finish. |