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Class Information
Number: 470/82
Name: Threaded, headed fastener, or washer making: process and apparatus > Apparatus for making externally threaded fastener or article, e.g., screw, bolt, etc. > Screw fastener making > Having thread cutting means > Having recessed cylindrical die block
Description: Subject matter wherein the component comprises a cylindrical structure having an external thread wherein the structure is capable of forming a thread by removing a portion of the structure on a line parallel to the axis of the structure.

Patents under this class:

Patent Number Title Of Patent Date Issued
6712708 Self-tapping screw, blank and method for joining thin workpieces and production method for the same Mar. 30, 2004
5203874 Device for securing dies on threading machines Apr. 20, 1993

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