Threaded fastener

专利名称：Threaded fastener

发明人：Kram, Guenther Reinhard,Chen, Chin-Tsai申请号：EP02291325.5申请日：20020530公开号：EP1281874A2公开日：20030205

专利附图：

摘要：A threaded fastener has a substantially single helical thread formed upon ashank portion (12) thereof, and a plurality of substantially saw-blade type or serratedteeth (30) are formed upon crest portions of leading ones of individual thread portions ofthe helical thread (22). The saw-blade type or serrated teeth cut into ride wall portions of

any one of a multiplicity of substrates so as to substantially reduce required insertiontorque levels, render fastener insertion operations quicker, and enhance fastener pull-out resistance values.

申请人：ILLINOIS TOOL WORKS INC.

地址：3600 West Lake Avenue Glenview, Cook County, Illinois 60025 US

国籍：US

代理机构：Bloch, Gérard

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