FAQ

What is the Core Diameter?
Core Diameter is defined as the smallest diameter of the thread of the screw or nut. The term “minor diameter” replaces the term “core diameter” as applied to the thread of a screw. Core Diameter is usually measured using the Millimeter for Length. Note that the value of Core Diameter is always positive.
Can the Core Diameter be negative?
No, the Core Diameter, measured in Length cannot be negative.
What unit is used to measure Core Diameter?
Core Diameter is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Core Diameter can be measured.
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