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#1 - 64 UNC : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more
23 lut 2024 · For example, “#1 – 64” means a #1 size screw with 64 threads per inch. For fractional sizes, it is shown as a fraction followed by the thread count, e.g., “1/4″ – 20” means a quarter-inch diameter with 20 threads per inch.
The Ulitmate Unified Inch Screw Thread Resource: Basic Dimensions, Classes, Tolerances, Formulas, Charts, and Explanations.
16 maj 2022 · Quick reference chart for Unified National Threads (UNC/UNF) major and minor diameters | Fine Threads & Coarse Threads
UNF – Unified National Fine Thread. Female and Male UNC/UNF threads are both parallel. The UNC/UNF flank angle is 60°. Unified threads comes in three different classes: for applications where a liberal tolerance is required to permit easy assembly even with slightly nicked threads.
#2 - 64 UNF : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more
The new term UNC is comparable with the ISO metric thread. NC and UNC threads are interchangeable, in an analogous manner like the metric and the ISO metric thread. The flank angle is 60°.
