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Posted by Dave LaBarge, CPS-CML-CMS on August 22, 2010 at 09:18:42:
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In Reply to: Antique Safe Wheel posted by |
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Steve: Set the safe on it's back and heat up the square bolts with a torch let cool and see if they loosen. If not try Kroil after it cools and let it set for a couple of days that may help. Many older threads had much tighter tolerances due to being "hand chased". Modern screw threads only "catch" the surfaces about 75% compared to older "Full Threaded" bolts. A "Full Threaded" bolt can cause what machinists call "Body Bound" or having threads with a very tight fit... Dave LaBarge, CPS-CML-CMS |