BSPP – BRITISH STANDARD PIPE PARALLEL (G SERIES)

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).
ItemDescription
B100G 1/16" 28 BSPP D/E PLUG GAUGE ISO 228
B100.1G 1/16" 28 BSPP GO RING GAUGE ISO 228
B100.2G 1/16" 28 BSPP NOGO RING GAUGE ISO 228
B101G 1/8" 28 BSPP D/E PLUG GAUGE ISO 228
B101.1G 1/8" 28 BSPP RING GO GAUGE ISO 228
B101.2G 1/8" 28 BSPP RING NOGO GAUGE ISO 228
B102G 1/4" 19 BSPP D/E PLUG GAUGE ISO 228
B102.1G 1/4" 19 BSPP GO RING GAUGE ISO 228
B102.2G 1/4" 19 BSPP NOGO RING GAUGE ISO 228
B103G 3/8" 19 BSPP D/E PLUG GAUGE ISO 228
B103.1G 3/8" 19 BSPP GO RING GAUGE ISO 228
B103.2G 3/8" 19 BSPP NOGO RING GAUGE ISO 228
B104G 1/2" 14 BSPP D/E PLUG GAUGE ISO 228
B104.1G 1/2" 14 BSPP GO RING GAUGE ISO 228
B104.2G 1/2" 14 BSPP NOGO RING GAUGE ISO 228
B105G 5/8" 14 BSPP D/E PLUG GAUGE ISO 228
B105.1G 5/8" 14 BSPP GO RING GAUGE ISO 228
B105.2G 5/8" 14 BSPP NOGO RING GAUGE ISO 228
B106G 3/4" 14 BSPP D/E PLUG GAUGE ISO 228
B106.1G 3/4" 14 BSPP GO RING GAUGE ISO 228
B106.2G 3/4" 14 BSPP NOGO RING GAUGE ISO 228
B107G 7/8" 14 BSPP D/E PLUG GAUGE ISO 228
B107.1G 7/8" 14 BSPP GO RING GAUGE ISO 228
B107.2G 7/8" 14 BSPP NOGO RING GAUGE ISO 228
B108G 1" 11 BSPP D/E PLUG GAUGE ISO 228
B108.1G 1" 11 BSPP GO RING GAUGE ISO 228
B108.2G 1" 11 BSPP NOGO RING GAUGE ISO 228
B108.3G 1-1/4" 11 BSPP D/E PLUG GAUGE ISO 228
B108.4G 1-1/4" 11 BSPP GO RING GAUGE ISO 228
B108.5G 1-1/4" 11 BSPP NOGO RING GAUGE ISO 228
B109G 1-1/2" 11 BSPP GO/NOGO PLUG GAUGE ISO 228
B109.1G 2" 11 BSPP GO/NOGO PLUG GAUGE ISO 228
B109.01G 1-1/2" 11 BSPP GO RING GAUGE ISO 228
B109.02G 1-1/2" 11 BSPP NOGO RING GAUGE ISO 228
B109.2G 2-1/2" 11 BSPP GO PLUG GAUGE ISO 228
B109.3G 3" 11 BSPP GO PLUG GAUGE ISO 228
B109.4G 4" 11 BSPP GO PLUG GAUGE ISO 228
B109.5G 5" 11 BSPP GO PLUG GAUGE ISO 228
B109.6G 6" 11 BSPP GO PLUG GAUGE ISO 228
B109.11G 2" 11 BSPP GO RING GAUGE ISO 228
B109.12G 2" 11 BSPP NOGO RING GAUGE ISO 228
B109.21G 2-1/2" 11 BSPP NOGO PLUG GAUGE ISO 228
B109.35G 3" 11 BSPP NOGO PLUG GAUGE ISO 228