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Definition of Bolt circle
1. Noun. (engineering) A theoretical circle on which the centerpoints of bolt holes lie when the bolt holes are positioned as equally spaced in a circle. Common examples are the bolt circle for the lugs on a car's wheel, or the bolts on a bolted joint between pipe flanges. Often abbreviated "BC" or "B.C." on engineering drawings. Often treated as a basic dimension, when true position for the centers is specified using GD&T. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Bolt Circle
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