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Dimensions of standard tire valve

Valves

Dimensions of standard tire valve

by  GregLocock  Posted    (Edited  )
According to the Tire and Rim Association (and they should know) the standard Schrader valve has the following thread

7.7 mm OD

32 tpi, or 0.794 mm pitch

Minor diameter is 6.9mm

Thread designation is .305-32 or 7.7-32

Nice mix of inches and millimetres!

The internal thread, ie the valve core thread, is 5.2-36, ie 5.2 OD by 36 tpi.

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