日本一测Issoku塞规M2.5X0.45 GP II IP II 日本一测Issoku塞规M2.5X0.45 GP II IP II Thread Plug Gauges (M2-0.4-6H-GPNP) Limit Screw Plug, ISO, 6H Part Number: M2-0.4-6H-GPNP • Product Model: Thread Plug Gauge • Specification: Others • Class: 6H • Work: Tapped • Hardness (hrc): 58～64 Configured Specifications   Product Type Thread Plug Gauge Nominal 2 Pitch P 0.4 Workpiece Female Thread Class 6H Standard Other Dimension L(mm) 60 Dimension B(mm) 5.5 Dimension L1(mm) 4.5 ℓ2(mm) 4.5 Manufacturer Product Code M2X0.4-6H GPNP Hardness(HRC) 58～64 Material SKS31 Mass(g) 3