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NPT Thread Calculator for NPT thread dimensions according to ANSI/ASME B1.20.1 standard. - For left hand threads, include LH to the designation. (Example: 1/4 - 18 NPT - LH)
- NPT Thread Chart Tap Drill Size Calculator
NPT Thread Chart Tap Drill Size Calculator for recommended...
- NPT Thread Chart Tap Drill Size Calculator
The ThreaDoctor includes 4 sub-apps: Metric Thread Calculator, UN thread Calculator, NPT thread Calculator, and BSP thread calculator. United Inch Screw Threads Per ASME B1.1 UNC – Coarse pitch thread.
Thread Calculator and Chart for metric thread, npt thread, bsp thread, unf thread, unc thread, acme thread, bspp thread, un thread, bspt thread, pipe thread, stub acme thread and buttress thread. UN thread chart and calculator. Clearance hole calculator. Clearance hole chart. Tap drill size calculator.
Get all the dimensions for NPT threads using our free NPT and Pipe Thread Calculator. This NPT Calculator makes thread dimensions easy.
The Jargon, calculations, and charts that define NPT threads are very different compared with standard metric and inch threads. This webpage will explain the difference between the various series, how each parameter is defined, and show how to find the correct basic dimensions and tolerances for each thread.
NPT Thread Chart for basic dimensions of general purpose NPT pipe threads (inch) according to ANSI/ASME B1.20.1 standard.
In both ISO and UN thread series, having a range of useful drill sizes allows designers and machinists to tailor effective thread depth for long holes, various materials and thread strength requirements. It also allows for the combining of inch and metric taps and drills where convenient to do so.
