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Re: Def.: Snug-Fit

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On Mar 13, 2007, at 5:41 PM, Michel Blangy wrote:

Bolt dias. I am concerned about are on the order of 1/4 to 3/8. Parts for assembly are generally well aligned bearing surfaces parallel.
I didn't think anyone doing building design used bolts smaller than 1/2 - 13. It's really not that hard twisting the heads off a bolt smaller than 1/2 inch. They're not used commonly for bolted flanges for just that reason. I've worked for a guy who said he knew oil rig workers who could twist the head off a 1/4 - 20 screw with their bare hands. I've never seen it, but I wouldn't be surprised, so I make it a point to stay away from anything smaller than 1/2 - 13.
Christopher Wright P.E. |"They couldn't hit an elephant at
chrisw(--nospam--at)   | this distance" (last words of Gen.
.......................................| John Sedgwick, Spotsylvania 1864)

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