Greenfield Threading 405269 Round Adjustable Die, 1.5" OD, 1/4" - 18 NPT, Carbon Steel, Uncoated (Bright) Coating, Right Cut CA1

Thread form: npt | Thread pitch: 18 | Thread size: 1/4-inch | Thread size equiv: 0.2500-Inch | Thread size equiv (metric): 6.35Mm Thread form: npt | Thread pitch: 18 | Thread size: 1/4-inch | Thread size equiv: 0.2500-Inch | Thread size equiv (metric): 6.35Mm Thread form: npt | Thread pitch: 18 | Thread size: 1/4-inch | Thread size equiv: 0.2500-Inch | Thread size equiv (metric): 6.35Mm