• Fix a Broken Doorknob Latch With a Rubber Band

    I have repaired thousands of these - I have been a locksmith for 35 years.Take any "expansion" type spring (about 1/4" in diameter - phosphor bronze is best, but steel is fine). Set the spring on an anvil, and use a cold chisel to cut it to length (about 1/2" short). Turn the last wind 90 degrees, and make it a hook. If you need to -- give it a stretch. Rubber band will work fine until any oil contacts it --- it will deteriorate...

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