Spring lock washer with square ends DIN 127 B Stainless - Truths

I hope I described this well, which it includes to the discussion, instead of muddying the waters. Last edited by Weapon Doc on Thu Oct 26, 2006 9:11 pm, edited 1 time in overall.

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Spring washers are locking washers that are used when there is a need to avoid a fastener from loosening as a result of vibration. They are likewise frequently called split lock or split ring washers. A spring washer has a split in the washer section that when tightened up each side of the split bites into the nut and the mounting surface.

There are 2 kinds of spring washer, square and rectangle-shaped section. Keep Checking Back Here refers to the shape of the split end section. An easy way to discriminate is that when seen from above, rectangle-shaped area spring washers look flatter than the square section variations, which look a lot more rounded.

WASHERS - The Olander Company, Inc. - An Overview

As the washer is tightened up under load, the vertical cut ends of the washer grab the nut and bind against it. When the nut is completely tightened, the split in the washer need to still be somewhat out of alignment. This is visual evidence that the spring washer is still operating as planned and in fact putting in a force on the fastener, as displayed in the image listed below; If the nut is overtightened the impact of the spring washer is considerably decreased, as the split ends of the washer are then brought into alignment as the washer is flattened, minimizing or completely getting rid of any stress on the fastener.

If an additional washer is required to spread the load (as in our image above) it ought to be used between the spring washer and the installing surface, i. e. the spring washer ought to be placed beside the nut. Are there any alternatives to spring washers? This very much depends on the application.