[Public-list] bronze shoulder bolts

[Mpete53 at aol.com]

George
 
A shoulder bolt is an odd bolt. A shoulder bolt has two different diameter.  
usually the larger one being solid the an abrupt reduction un diameter (the  
shoulder) and this smaller diameter is threaded all the way to the  shoulder.
 
If what you are looking for is a constant diameter bolt where the threads  
are rue only a short way down the bolt, you are most likely looking at a custom  
bolt. This is worst than it sounds and you should be able to make them 
yourself  with a reasonable amount.
 
First you need to find bolts of the correct head shape and material  that 
have full diameter shanks that is at least as long as the bolt you need.  This is 
sometime harder then it sounds since many bolts are made using what they  
call "rolled threads". Rolled threads use an undersized shank then with a  
special machine squeezes the threads into the bolt.
The second thing you need is a thread cutting die (a good set at Sears is  
about $90 but you could buy just the one you need for less). Now just cut the  
bolt to length and run just the amount of thread that you need.
 
Mark

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