Anchor bolt load capacity

[cheesyboy]

Was that you stood at the end of a 300mm bar thats only support at the other end?

No, I tested it on the ground supported between two points - probably a 20-25cm span.

 

[theone8181]

No, I tested it on the ground supported between two points - probably a 20-25cm span.

That's a massive different in force compared to something bolted hard to a wall.

 

[Pabl0]

You could red plug and screw that to the wall with that weight and it wouldn't shear.

Decent fixings, perhaps chemical if you're feeling like a belt and braces approach to cover the additional shock of throwing the weights onto the rack.

 

[Doobedoo]

Chemical resin is only good if the material you drilling into is not very good, it’s not going to increase the breaking/sheer point of a 6mm fixing.

Just drill it and fix the bracket to the wall then just the weights carefully one at a time and see what happens.

I’d prefer to use 8mm if it was me but no harm in trying 6mm if that’s all you can use.

 

[Marakith]

Hello!

Figured it would be nice to give you all a short update.

In the end I drilled the holes out to 12mm, and used M10 anchor bolts (this gave me just enough slack if the drill drifted for any reason). Drilling out the metal was a pain in the proverbial but I got there in the end.

The rack is up and solid. So far I am just loading it with just under 160kg, but I'm confident in the wall and bolts so I'm sure it'll cope with the next plates I buy for it.

Thanks again for all the advice.

 

[theone8181]

Just looking at that pic, the bolts you've used look like belong on the thing anyway. You might of found it easier stepping upto 8 then to 10 rather going straight upto 12. I bet you had loads of chatter.