Thread: Hand Crank Discussion
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Old 01-08-2013, 08:26 AM
  #24  
SteveH
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Join Date: Oct 2012
Location: San Lorenzo, CA
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Originally Posted by Caroline S View Post
Check out this link, http://www.singersewinginfo.co.uk/screw_threads/, perfect for your technical mind.
Ohhh thank you.... Bookmarked
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