British Association screw threads

British Association screw threads, or BA screw threads, are a largely obsolete set of small screw threads, the largest being 0BA at 6 mm diameter. They were used by Lucas in many of the instruments and also found in the MG early models in handles, windscreens and many of the chrome items.
C187A
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C924B
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Hexagonal Screw-Door Striker 2BA x 1

  • TD TF
F002
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F010
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F013
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Screw 4BA x 1/2 Cheese Head

F039B
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F040ACP
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F040CP
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F040CS
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Screw 2BA x 3/4 Steel Csk

  • TA TB TC
  • Y Series
F041
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F041CP
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F041CS
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F042CP
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F042CS
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F043CP
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F043CS
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Screw 2BA x 1.50 Chrome Slotted

F045CS
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Screw 2BA x 5/8 Round Head

F047
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Screw 2BA x 3/4 Round Head

F048
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Screw 2BA x 1 Round Head

F049
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