[Spridgets] oil pan bolt size

[David Lieb]

> "ASME B18.2.1 defines a bolt as 'an externally threaded fastener designed 
> for insertion through the holes in assembled parts, and is normally 
> intended to be tightened or released by torquing a nut'."
>
> So the fastener that holds the pan to the engine would technically be 
> called a screw, although I, too, refer to it as a bolt, since it does not 
> have a slot, a point, nor is it conical, as a screw (shut up Ed) is to my 
> way of thinking.  But then, again, it has no nut, so it fits the above 
> description of a "screw".     8^)

But what is the ASME definition of a screw? It almost sounds like screw is 
asuperset of bolt.