TWO-STEEL SCREW WITH AN EXTRUSION CONNECTION AND METHOD FOR PRODUCING SAID SCREW

Title:

TWO-STEEL SCREW WITH AN EXTRUSION CONNECTION AND METHOD FOR PRODUCING SAID SCREW

Document Type and Number:

WIPO Patent Application WO/2015/135710

Kind Code:

A1

Abstract:

The invention relates to a two-steel screw comprising a top part and a cutting part, the top part consisting of a corrosion-resistant material and having a screw head and a shank portion, and the cutting part consisting of a hardenable material, the top part being permanently connected to the cutting part in the region of the shank portion by way of extrusion. Furthermore, the invention relates to a method for the production of such a screw.

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Inventors:

GROTMANN DIETER (DE)
KETTNER TOBIAS (DE)

Application Number:

PCT/EP2015/052762

Publication Date:

September 17, 2015

Filing Date:

February 10, 2015

Export Citation:

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Assignee:

EJOT GMBH & CO KG (DE)

International Classes:

B21K1/44; F16B25/00; B21K25/00

Foreign References:

EP2080916A1	2009-07-22
DE102011053384A1	2013-03-14
EP1564423A1	2005-08-17
DE10033471C1	2001-12-06
EP1450054A1	2004-08-25
AU2009201409A1	2009-10-22

Other References:

None

Attorney, Agent or Firm:

DREISS Patentanwälte PartG mbB (DE)

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