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            | Washer for steel structures | 
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                    |  |  | DIN 7989A |  |  | 
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            | Technical Parameter | 
            | | For nom.size              d1              d2 | For nom.size              d1             d2 
 | For nom.size             d1              d2 |  | M10                              11             20 | M20                              22             37 | M30                              33             56 |  | M12                              13,5          24 | M24                              26             44 
 | M33 (≠DIN)                 35             60 |  | M16                              17,5          30 |  M27                            30             50 | M36 (≠DIN)                 38             66 | 
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            | Product Category | 
            | | Material | Surface treatment | Packaging | Code | Page |  | St | Zipl | Standard | 38280 | 7-19 |  | St | Hot d.g. | Standard | 38270 | 7-19 | 
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