BSPP - BRITISH STANDARD PIPE PARALLEL (G SERIES) BSF - BRITISH STANDARD FINE THREAD BSW - BRITISH STANDARD WHITWORTH COARSE APPLICABLE STAND
BSPP, BSW & BSF
BSPP – BRITISH STANDARD PIPE PARALLEL (G SERIES) BSF – BRITISH STANDARD FINE THREAD BSW – BRITISH STANDARD WHITWORTH COARSE APPLICABLE STANDARDS; BS-21, BS 919, ISO 228, ISO 7-2, EN10226 BSPP, BSF & BSW are Whitworth parallel screw thread with a full angle of 55 degrees and one-sixth of this sharp V is truncated and rounded at the top and bottom (crest and root).












