Unified Threads (UNC/UNF/UNEF): Dimensions & Formulas
The Ulitmate Unified Inch Screw Thread Resource: Basic Dimensions, Classes, Tolerances, Formulas, Charts, and Explanations.
1/4 - 20 UNCPossible Thread Classes - Machining Doctor
1/4 - 20 UNC : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more.
1 - 20 UNEF : Thread Dimensions (Machining Doctor)
1 - 20 UNEF : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more.
ACME Threads: Dimensions, Charts & Formulas - Machining Doctor
The Ulitmate ACME Thread Resource: Basic Dimensions, Classes, Tolerances, Formulas, Charts, and Explanations.
Tap Drill Size: calculator, formulas & Charts - Machining Doctor
Tap drill size calculator for Inch and metric threads (For Cutting and Forming Taps). Plus formulas and charts for Tap Drill Size.
Metric Threads: Dimensions, Classes & Formulas (full Guide)
The below charts show all the possible thread size combinations of diameters/pitch as defined in ISO-261. MC – Metric Coarse Thread Series. MF – Metric Fine Thread Series. Click to get the Full Thread Data-Sheet for a specific combination.
National Pipe Thread: Charts And Formulas (NPT) - Machining …
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. Table of Contents. List of Series defined in ASME B1-20.1. Designations of National Pipe Threads. NPT series – Tapered Pipe Thread.
British Pipe Thread (BSP): Dimensionss & Formulas - Machining …
The Jargon, calculations, and charts defining BSP threads differ greatly from 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 …
1/4 - 28 UNFPossible Thread Classes - Machining Doctor
1/4 - 28 UNF : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more.
1/4-18 NPT : Pipe Thread Dimensions (Machining Doctor)
1/4-18 NPT : Pipe and Fitting Thread Dimensions and Tolerances. All the relevant data for this tread in one spot.