The Firearms Forum - Gun Community - View Single Post

PPK 32 · 01-31-2009, 08:39 PM

This goes back a long time to a machine shop class in college. To case harden a screw ya heat it up with a propane torch and put it in sugar. Make sure you cover it in sugar. This was supposed to be a way to case harden a screw. Hope this helps.

01-31-2009, 08:39 PM	#2
PPK 32 Advanced Senior Member Join Date: Apr 2008 Location: Frickin, Illinois Posts: 1,170	Re: Making/hardening gun screws This goes back a long time to a machine shop class in college. To case harden a screw ya heat it up with a propane torch and put it in sugar. Make sure you cover it in sugar. This was supposed to be a way to case harden a screw. Hope this helps.