7 millimetres is metric, it is 0.007 metres.
It does being a length of 0.007 metric meters.
No
It is 16 mm, whether or not in the metric system!
21 mm
To measure the mm of an item you would need to use a metric ruler. The metric ruler has cm and mm on it.
A mm is a metric unit.
mm
M30 - Coarse 3.5mm, Fine 2.0mm?Metric Thread Pitch and Tapping SizesSizePitch (mm)Tapping Diameter (mm)Clearance Holes (mm)CoarseFineCoarseFineCloseMediumCoarseM1.60.351.251.71.82.0M20.41.62.22.42.6M2.50.452.052.72.93.1M30.52.53.23.43.6M40.73.34.34.54.8M50.84.25.35.55.8M61.05.06.46.67.0M81.251.06.87.08.49.010.0M101.51.258.58.710.511.012.0M121.751.2510.210.8131415M162.01.514.014.517.018.019.0M202.51.517.518.521.022.024.0M243.02.021.022.025.026.028.0M303.52.026.528.031.033.035.0M364.03.032.033.037.039.042.0
You can write 7 as a fraction by using 1 as the denominator: 7/1.If you want this as a fractional part of meters, centimeters, kilometers, inches, feet, etc., please clarify what unit you want to convert it to.
A4 is 210 mm by 297 mm.
mm
metric unit of measure for volume is mm cube .