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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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