Deciphering Thread Size
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Do the thread sizes listed in pattern recipes confuse you? Selecting the proper thread is far easier than you think.
![](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/39/39378-MetricThread.jpg)
Metric Thread Forms Home Model Engine Machinist Forum
THE DYNA-KING EXCALIBUR FLY TYING VISE - Fly Tyer Magazine
![](https://us.misumi-ec.com/blog/wp-content/uploads/2023/01/VMRO-Understanding-Metric-and-Inch-Thread-Spec-Image-Metric-Thread-Spec-600x400-02.jpg)
Understanding Metric and Inch Thread Sizes in Fasteners
![](https://www.sailrite.com/Product%20Images/Selecting-the-Right-Thread-Size_2.jpg?resizeid=3&resizeh=600&resizew=600)
Understanding Thread Sizing
![](https://images.squarespace-cdn.com/content/v1/57fd5aa69f745699d45f362d/1611524372240-9M2BI78E3LLBYEP1MZUD/bolt-ID-markings%2B%281%29.jpg)
Deciphering Bolt Head Markings
Fly Tyer Magazine
![](https://i0.wp.com/lorikennedyquilts.com/wp-content/uploads/2019/04/ThreadWeight.LoriKennedy.BERNINA005-1.jpg?resize=640%2C495)
Understanding Thread Weight - Lori Kennedy Quilts
![](https://waykenrm.com/wp-content/uploads/2023/02/thread-machining.jpg)
Thread Machining: Process, Methods, & Cutting Guide - WayKen
Fly Tyer Magazine
![](https://d2u373qf4c8xad.cloudfront.net/i/_/EducationalCenter/OriginalPages/thread-plies-explained.jpg~q=85)
Thread Measurement
![](https://www.sailrite.com/Product%20Images/Selecting-the-Right-Thread-Size_1.jpg?resizeid=3&resizeh=600&resizew=600)
Understanding Thread Sizing