[TR] Replacement bolts

[FordneyNJ at aol.com]

I was taught the opposite:  bolts are fasteners that have only  partially 
threaded shanks and those with fully threaded shanks are cap  screws.  A 
bolt 
relies on a nut for its fastening capability, whereas a  screw fastens by 
engaging with a tapped hole in the piece to which it is  securing something.

Mike 
 
The original usage of a tap bolt was for a tapped hole.   Any  fastener 
with threads is a screw, ie wood screw, sheet metal screw, machine  screw, set 
screw, socket head cap screw and of course the afore mentioned  hex(head) 
cap screw.  A tap bolt could be called a tap screw.
 
Rodney