Quote:
	
	
		| 
			
				 
					Originally Posted by Lee
					
				 
				...In Fernando's picture of the threaded tang above, I note that the threads are very rounded and I wonder if the sharp taper is also of some special function... 
			
		 | 
	
	
 I realize threaded tangs are one thing and actual screws are another. But based on their affinity i recalled these images of (very) early screws, once posted here by deceased Michael (Matchlock). The tapered examples are naturally what triggered my thoughts.
.