Steel hollow-head screw

B - Operations – Transporting – 21 – K

Patent

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Details

B21K 1/46 (2006.01) C22C 38/02 (2006.01) C22C 38/04 (2006.01) C22C 38/32 (2006.01)

Patent

CA 2491598

The invention relates to a hollow-head screw which is made by simple successive cold working operations using a steel comprising between 0.15 and 0.25 % of carbon.

L~invention concerne une vis à tête creuse, réalisée par simples écrouissages successifs à froid, à l~aide d~un acier comportant un pourcentage de carbone compris entre 0,15 et 0,25 %.

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