Threads and Fasteners - Cabarrus County Schools

C = Coarse thread. 2 = Class 2 fit. A = External thread. Example:.88-14UNF-2B.88 = Major diameter of the thread. 14 = Threads per inch. UN = Unified threads. ... Explode the block to adjust (stretch) the length of the thread and bolt length and adjust the line type scale. The bolt head and nut will automatically be in the proper proportion with ... ................
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