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@trevorflowers We have a whole business unit in our company that does engineered bolting. They torque flange bolts in chemical plants and refineries, where it *really* matters that things don’t come loose. When you see how much things move around and vibrate in operation in these plants, it’s pretty important that they don’t come loose lol

@trevorflowers I’m thinking it has more to do with the proper torque value than the washer. One thing you don’t see on bolting of pressure vessel flanges is lock washers. They are very specific about torquing those, which is why they don’t come loose.

@trevorflowers Like “sealed” bearings, “lock” washers are one of the biggest lies of industry.