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G 1/8 thread dimensions

ISO 228-1 (BSPP) · Parallel · 55°

Dimensions

Standard
ISO 228-1 (BSPP)
Form
Parallel
Major diameter
9.728 mm
Threads per inch
28
Pitch
0.907 mm
Flank angle
55°
Seals on
Gasket / O-ring
Used for
Process connections

Check a measurement against this thread

Easily confused with

ThreadStandardMajor diameterFlankSeals on
1/8 NPTASME B1.20.10.56 mm larger in diameter; pitch 0.941 mm60°Thread + sealant

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