Tim's measurements of a bunch of hexnuts from the hardware store.
A quarter-inch nut is not .25 inches in size, of course: it's called 1/4 inch because it fits a bolt that's 0.25 inches in diameter.
But how does the weight of a nut depend on this "bolt size"?
In a metric size, by the way, the number after the M is the bolt diameter in mm.
- size The name of the bolt size
- boltSize That value in decimal inches
- W weight (OK, mass) in grams
<text form of the data>