2 single-start screws and a 2-start screw

PART OF:: Lead screw correcting lathe and accessories by Armstrong Whitworth and Co

2 single-start screws and a 2-start screw, all probably workpieces; and a short screw and nut, probably a demonstration piece

Details

Category:: Industrial Metrology

Object Number:: 1983-62/35

type:: screws

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2 single-start screws and a 2-start screw

Details

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