BID OFFER SHEET - Seattle

The screw thread is specified by giving its nominal (major) diameter, number of threads per inch, class of fit, and external (A) or internal (B). ... EF = Extra Fine thread. 4 = Class 4 fit. A = External thread. LH = Left-hand thread. Metric Annotations ... Meaning that you will have one master bolt and nut drawing to fit all sizes. For example ... ................
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