Davis left hand thread screw

Old 06-19-2016, 04:54 PM
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Default Davis left hand thread screw

Hi all,

I was cleaning up Davis rotary. I need to take the bobbin winder off the pillar. After increasing screwdriver sizes and asking for help to secure the base, I was stumped. Winder wobbled. hmm. On a whlm, I turned it clockwise. Yea. It unscrewed. Maybe you know this, but it as a surprise to me so thought I'd share.
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Old 06-19-2016, 06:32 PM
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How odd. Well, good to know!
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Old 06-20-2016, 06:24 PM
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Nice work. Probably made by National rather than Davis. My Davis made Davis Rotary screw loosens counter clockwise.

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