Mass Production of Screws and Bolts

England mass-produced screws and bolts in 1800, following Henry Maudslay’s metal lathe innovation. The modified screw-cutting metal lathe included 28-gears that linked the spindle speed to advance the tool-cutting carriage causing a consistent and accurate pitch on the screw threads. Joseph Whitworth began threaded metal part production in a variety of sizes, and established standard thread pitches in 1841.

      1800, 1841
      Henry Maudslay
      Master Machinist
      London, England

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