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British Association screw threads

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  • British Association screw threads — British Association or BA screw threads are a largely obsolete set of small screw threads, the largest being 0BA at 6 mm diameter. They were, and to some extent still are, used for miniature instruments and modelling.They are unusual in that they …   Wikipedia

  • British Standard Whitworth — (BSW) is one of a number of imperial unit based screw thread standards which use the same bolt heads and nut hexagonal sizes, some others being British Standard Fine thread (BSF) and British Standard Cycle. These three are collectively called… …   Wikipedia

  • Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… …   Wikipedia

  • Screw thread — Internal and external threads illustrated using a common nut and bolt. The screw and nut pair can be used to convert torque into linear force. As the screw (or bolt) is rotated, the screw moves along its axis through the fixed nut, or the non… …   Wikipedia

  • ISO metric screw thread — The ISO metric screw threads are the world wide most commonly used type of general purpose screw thread.[1] They were one of the first international standards agreed when the International Organization for Standardization was set up in… …   Wikipedia

  • Unified Thread Standard — Threads per inch redirects here. For the textile term, see Glossary of textile manufacturing#T. The Unified Thread Standard (UTS) defines a standard thread form and series along with allowances, tolerances, and designations for screw threads… …   Wikipedia

  • Drill and tap size chart — Below is a comprehensive drill and tap size chart for all drills, imperial and metric, and taps up to 36.5 mm. Contents 1 Chart 2 See also 3 References 4 External links …   Wikipedia

  • BA — BABA (or B.A.) may refer to:*Bachelor of Arts *Bangladesh Army *Bank of America *Bell Atlantic now Verizon Communications *The Boeing Company, its stock symbol *British Airways, its IATA airline designator *British Army *British Association for… …   Wikipedia

  • Joseph Whitworth — Infobox Engineer image size = caption = Sir Joseph Whitworth name = Sir Joseph Whitworth nationality = British birth date = December 21 1803 birth place = Stockport death date = January 22 1887 death place = Monte Carlo education = spouse =… …   Wikipedia

  • Ralph Flanders — Infobox Senator name = Ralph Edward Flanders imagesize = 175px birth date = birth date|mf=yes|1880|9|28 birth place = Barnet, Vermont death date = death date and age|mf=yes|1970|2|19|1880|9|28 death place = Springfield, Vermont resting place =… …   Wikipedia

  • History of Greenland — Hunting and whaling have always been important ways to make a living on Greenland. One of the animals found here is the polar bear, which is on the coat of arms of the Danish royal family The history of Greenland is the history of life under… …   Wikipedia