发明名称 Process for making self-drilling fasteners
摘要 A process for making self-drilling, screw fasteners having improved corrosion resistance. The process comprises applying a frangible radiation curable plastic coating over the drill tip corrosion prior to the deposition of a heavy resistant plating on the remainder of the screw. The invention is further directed to the product of the process.
申请公布号 US4713855(A) 申请公布日期 1987.12.22
申请号 US19870046237 申请日期 1987.05.04
申请人 WHYCO CHROMIUM COMPANY, INC. 发明人 HYNER, JACOB;GRADOWSKI, STEVEN
分类号 F16B25/10;F16B33/00;F16B33/06;(IPC1-7):B23G9/00 主分类号 F16B25/10
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