Purpose of washers

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Old 07-31-07, 10:58 AM
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Purpose of washers

Planning a project and it calls for washers. Though I know I'm going to use them, I'd like to know the purpose of them. At least this way I know the purpose of them on any other projects.
 
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Old 07-31-07, 11:19 AM
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The purpose of a washer is to provide strength around the hole the fastener is passing through.
It also provides a firm base for the fastener when it rotates as it is being tightened.
Washers can be used as spacers as well.

There are more uses for washers and there are also many types of washers.

How do the washers relate to your project?
 
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Old 07-31-07, 12:04 PM
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Spreads the load / tension across a larger area, and, depending on the project
will reduce the possibility of pullthroughs.
 
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Old 07-31-07, 12:24 PM
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Thanks guys. Specifically, it's for a halfpipe that has an attached railing (2x4's will be used).
 
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Old 07-31-07, 03:38 PM
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Half a pipe?

You should know that if you only have a half a pipe a railing won't seal it.
Replacing it will be your only option.
 
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Old 07-31-07, 03:41 PM
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no no no... I'm going to build a "Halfpipe". Like for skateboarding.
 
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Old 08-07-07, 11:56 AM
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In your case, the washer is keeping the bolts from "pulling through", or sinking into the wood (and therefore loosening the connection)
 
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Old 08-07-07, 08:42 PM
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On something like wood, I would use what's called a "fender" washer.

It's even wider than a regular washer.

Jim
 
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Old 08-07-07, 08:50 PM
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Perfectly understood

I actually found the washers except I got the wrong size! Doh! I think I did get the fender washers cuz these things sure don't look the normal size. What I did was make sure the lag screws would fit through, however, while I was screwing it through...I forgot to make sure the top part of the screw would fit through the hole and it didn't so I have to go back. I didn't realize it until I got home and played with it. Sure taught me a lesson on washers and screws.
 
 

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