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Old January 21, 2019, 07:37 PM   #9
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Join Date: February 22, 2008
Location: SW Washington state
Posts: 1,455
Lots O Loctite

I've been a manufacturer's rep for a good many years now. We use a lot of loctite in manufacturing the Eq. I sell.

Purple would be the "perfect" loctite. Blue works great for 6, 8 or # 10 machine thread screws.

Thread engagement is typically specified at 75% for standard machine screws. Loctite fills in that last 25% and strengthens the assembly. Of course it's primary purpose is to prevent loosening from vibration.

Loctite does not "work" in the presence of oil or grease. In fact the primer sold for loctite is primarily a cleaning solvent to get rid of oil.

Never use Red on small fasteners.
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