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Home > General Chat > OT: Raw Bolts

Rob H

4314 Posts
Member #: 700
Formerly British Open Classic

The West Country

15th Feb, 2012 at 11:02:27am

Does any one know how much force it takes to pull a raw bolt out of a brick wall? Or know where I can find out?

I'm in the process of mounting some large brackets which will be taking a fair bit of weight and I'd feel alot happier if I could crunch the numbers and work out how much weight the will take as opposed to just blindly guess.

Isambard Kingdom Brunel said:
Nothing is impossible if you are an Engineer

shellspeed

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580 Posts
Member #: 9580
Post Whore

Surrey

15th Feb, 2012 at 11:11:04am

http://www.rawlplug.co.uk/index.php?option...id=20&Itemid=25

then click on the pdf data sheet

Rob Gavin

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6729 Posts
Member #: 618
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Glasgow

15th Feb, 2012 at 02:06:50pm

this has a lot to do with the substrate as well

stevieturbo

3594 Posts
Member #: 655
Post Whore

Northern Ireland

15th Feb, 2012 at 03:34:08pm

Depends on fixing type, and of course exactly the material they are going into.

What is it you're doing and how are the loads placed on the bolt ?

Even a wedge anchor into a concrete ceiling will hold a huge vertical load

Softer brick will of course be less, and if very soft, rawl bolt may not be the best fixing to use.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

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