NPSM Straight Pipe Thread Plug Gages for Pipe Coupling 8"

NPSM Straight Pipe Thread Plug Gages for Pipe Coupling 8"
NPSM Straight Pipe Thread Plug Gages can be divided into Go/No Go Thread Plug Gage with handle.the NPSM thread plug gauge standard is ANSI/ASME B1.20.1.
NPSM Straight Pipe Thread Plug gauge for comprehensively inspect the internal threads of American standard cylindrical pipes
NPSM plug gauge's material is GCr15 bearing steel, with a measured surface hardness of 58-65HRC, high hardness, and wear resistance.
T means the gauge is used to inspect the pitch diameter and major diameter of the internal thread of the product, and it should be screwed through
Z means when inspecting the internal thread of a product, the amount of thread engagement should not exceed two pitches using a stop gauge.