External British Pipe Threads (Whitworth Form) Table per. BS EN ISO 228
Amazon.com: British Thread Grease Fitting Kit - 100 Piece Assortment : Automotive
Imperial Thread Dimensional Information | EICAC
British Standard Pipe - Wikipedia
BSP Thread Size Information | BSPT | British Standard Pipe Thread
WHITWORTH AND OTHER BRITISH THREADS | JRC Engineering, Inc.
British Threads - BA
BSW/BSF Thread Dimensions Chart | Optimas International
Thread Data Charts-FINE PITCH (BSF) BRITISH THREAD DATA CHART
British Thread Gages | British Thread Gauges
British standard pipe thread - type G | PPT
TR knowledge base | Thread geometry - British Standard Whitworth (BSW)
British Threads - Whitworth
How to ID British Threads & Fittings | Adaptall
BS 93 British Association (B.A.) Screw Threads Data Charts
British Standard Pipe - BSP
WHITWORTH AND OTHER BRITISH THREADS | JRC Engineering, Inc.
British Threads - British Standard Fine
International Thread Types: British Threads
Bolt Science - The British Association (BA) Thread Form
British Standard Whitworth Screw Thread - British Standard Fine Series - YouTube
How to ID British Threads & Fittings | Adaptall
BSW & BSF Threads
