Double Thread Screw

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A double thread screw drawn by drawing diagonal lines in between the pitch. The double thread screw is a screw with threads bunched together between the pitch.

Galleries

Screws

Source

Anthony, Gardner C. Elements of Mechanical Drawing (Boston, MA: D. C. Heath & Co., 1904)

Downloads

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2400×2157, 385.2 KiB

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640×575, 36.2 KiB

Small GIF

320×287, 15.3 KiB