In a hexagonal nut, width across flats by the approximate standard method is ______ (where D = nominal diameter).

In a hexagonal nut, width across flats by the approximate standard met

1.	In a hexagonal nut, width across flats by the approximate standard method is ______ (where D = nominal diameter).
A.	1.0 × D + 3 mm
B.	2 × D mm
C.	(1.5 × D) + 3 mm
D.	4 × D mm
Answer» D. 4 × D mm

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In a hexagonal nut, width across flats by the approximate standard method is ______ (where D = nominal diameter).

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