Thread Dimensions Program


NPT Thread Dimensions Calculatorwas developed to show basic dimensionsof general purpose NPT thread (inch) according to ANSI/ASME B1.20.1-1983 standard.Some important notes from the ANSI/ASME B1.20.1-1983 standard:- For left hand threads, include LH to the designation. (Example: 1/4 - 18 NPT - LH)- For pressure-tight joints, it isintended that taper pipe threads be made up wrench-tight with a sealant.To prevent galling onstainless steels and similar materials, the sealant usually contains a lubricant.- For pressure-tight joints which may be used without sealant (Dryseal Compounds), check ANSI B1.20.3 standard.- Thread taper angle = 1/16 taper = 1 deg.
M24 Thread Dimensions Cnc Programs
47 min = 0.75 in./ft.- The angle between the sides of the thread is 60 deg.- Thread Designation: The nominal pipe size, number of threads per inchand the thread series symbol in sequence. Ex: 3/8 - 18 NPT- Standard does not include anallowance for plating. If plating is desired, it may benecessary to modify the threads since the same finalgauging requirements must be applied for plated andunplated parts.American National Standard Taper Pipe Thread (NPT).