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            | Cupped washer for seating screw | 
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                    |  |  | DIN 15237 |  |  | 
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            | Technical Parameter | 
            | | For nom.size | M8 | M10 |  | d2 | 9,5 | 11,5 |  | d4 | 32 | 40 |  | h ≈ | 5,7 | 7 | 
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            | Product Category | 
            | | Material | Packaging | Code | Page |  | St.St. A2 | Standard | 51506 | 1-72 |  | St.St. A4 | Standard | 55506 | 1-72 | 
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