British standard brass thread

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British Brass Thread thread is an imperial unit based screw thread. It adopts the Whitworth thread form with a pitch of 26 threads per inch for all diameters. It is often wrongly called British Standard Brass but is not actually covered by a British Standard.

Nominal sizes are usually in the range 1/8 to 2 inches.

[edit] See also

Other Imperial Unit thread standards:

• Unified Thread Standard (UTS, including UNC, UNF and UNEF)
• British Association screw threads (BA)
• British standard pipe thread (BSP)