View single post by Steve Cunningham
 Posted: Tue Mar 12th, 2013 03:04 am
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Steve Cunningham

Joined: Mon Nov 14th, 2005
Location: Grapevine, TX, Texas USA
I think the "U"Drive Screws came out in the 1930's, maybe later. The threads were rolled on using two dies. The Round Head Drive Wood Screws probably date to the 1950's. when I started in the 1960's there no wood drive screws in inventory. I only had one request for those in the 1970's. And that guy was reproducing an antique piece of furniture. I think the minimum order of 100,000 screws turned him off.