Die for driving pierce nut
Disclosed is a die assembly for driving a pierce nut which comprises an annular coining portion (2) provided on the top of a die body (1) in such a way as to have its inner surface continuous to the center aperture (3), and an annular projection (4) provided on the upper portion of the center apertu...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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