Posted by Ian McColl Stockade locksmiths on September 29, 2001 at 02:15:43:
In Reply to: Do fake Darbies have bent keys? posted by RON on September 28, 2001 at 21:59:27:
Hi, the reason for many keys for Indian darbies or keys for screw key locks to have the thread appear to be offset is because the key is not threaded with a 'tap' nor is the key solid to begin within.
Many keys for these cuffs and similar locks are actually sheet steel rolled to produce a tube and a coil of wire is inserted to become the thread.
If the sheet steel overlaps, it will produce a hole offset from the centre. Both the coil and the tube are brazed (brass welded) together.
Hope this helps
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